Merge bluetooth branch into master

 - New SPI HCI driver for ST BlueNRG modules
 - More memory optimizations through TX buffer pool consolidation
 - Refactoring to take advantage of new IS_ENABLED() macro
 - Fixes to LE L2CAP Credit-based Flow Control
 - Various smaller fixes & enhancements here and there

----------------------------------------------------------------
Arkadiusz Lichwa (2):
      Bluetooth: UUID: Fix format specifier in 128-UUID
      Bluetooth: ATT: Fix redundant sys_slist call

Arun Jagadish (1):
      Bluetooth: AVDTP: Added params to AVDTP Request structure

Carles Cufi (1):
      bluetooth: hci_core: Fix conn params validity check

Jaganath Kanakkassery (1):
      Bluetooth: RFCOMM: Implement Aggregate Flow Control

Johan Hedberg (21):
      Bluetooth: Consolidate most outgoing ACL TX buffers into a single pool
      Bluetooth: Use the controller bt_rand() whenever possible
      Bluetooth: Controller: Rename hci_le_rand to bt_rand
      Bluetooth: hci_uart: Remove redundant idle & ISR stack size values
      Bluetooth: Remove unused bt_hci_driver_unregister() API
      Bluetooth: Add missing documentation to HCI driver APIs
      Bluetooth: GATT: Fix missing connection address comparison
      Bluetooth: ATT: Add new error code from CSSv7
      Bluetooth: Prefer struct bt_le_conn_param over individual values
      Bluetooth: Add documentation for connection callbacks
      Bluetooth: Remove ACL details from BT_BUF_RX_SIZE
      Bluetooth: L2CAP: Remove RECV_RESERVE from BT_L2CAP_RX_MTU
      Bluetooth: Introduce a new connection parameter request callback
      Bluetooth: Take advantage of IS_ENABLED macro for BT_DBG
      Bluetooth: Add __printf_like annotation for bt_log
      Bluetooth: drivers/nble: Remove bogus BT_DBG manipulation
      Bluetooth: hci_core: Take advantage of IS_ENABLED whenever possible
      Bluetooth: conn: Take advantage of IS_ENABLED whenever possible
      Bluetooth: L2CAP: Take advantage of IS_ENABLED whenever possible
      Bluetooth: SMP: Take advantage of IS_ENABLED whenever possible
      Bluetooth: Don't select TinyCrypt RNG for combined builds

Lee Jones (5):
      pinmux/stm32l4: Add support for STM32L SPI1 and SPI3
      pinmux/nucleo_l476rg: Define pinmuxing for SPI1 and SPI3
      Bluetooth: Add HCI SPI driver
      Bluetooth: samples/beacon: Print message at start of sample
      Bluetooth: Kconfig: Specify stack size for Bluetooth SPI

Luiz Augusto von Dentz (4):
      Bluetooth: L2CAP: Fix using CONFIG_BLUETOOTH_RX_BUF_LEN as MTU
      Bluetooth: IPSP: Reuse buffer fragments instead of copying
      Bluetooth: L2CAP: Make sure state is correctly updated
      Bluetooth: L2CAP: Fix always using RX_BUF_COUNT as initial credits

Sathish Narasimman (1):
      Bluetooth: AT: Rename enum at_cmd_type elements

 drivers/bluetooth/hci/Kconfig                   |  81 +++
 drivers/bluetooth/hci/Makefile                  |   1 +
 drivers/bluetooth/hci/h4.c                      |   8 +-
 drivers/bluetooth/hci/h5.c                      |   8 +-
 drivers/bluetooth/hci/spi.c                     | 351 ++++++++++++
 drivers/bluetooth/nble/conn.c                   |   8 +-
 drivers/bluetooth/nble/gap.c                    |  13 +-
 drivers/bluetooth/nble/gatt.c                   |   8 +-
 drivers/bluetooth/nble/rpc_deserialize.c        |  27 +-
 drivers/bluetooth/nble/rpc_serialize.c          |   5 -
 drivers/bluetooth/nble/smp.c                    |   3 +-
 drivers/bluetooth/nble/uart.c                   |   6 +-
 drivers/bluetooth/nrf51_pm.c                    |   1 +
 .../pinmux/stm32/pinmux_board_nucleo_l476rg.c   |  12 +
 drivers/pinmux/stm32/pinmux_stm32l4x.h          |  10 +
 include/bluetooth/att.h                         |   1 +
 include/bluetooth/buf.h                         |   1 -
 include/bluetooth/conn.h                        |  81 ++-
 include/bluetooth/l2cap.h                       |   2 +
 include/bluetooth/log.h                         |  40 +-
 include/drivers/bluetooth/hci_driver.h          | 106 +++-
 samples/bluetooth/beacon/src/main.c             |   2 +
 samples/bluetooth/hci_uart/nrf5.conf            |   2 -
 samples/bluetooth/ipsp/src/main.c               |  35 +-
 subsys/bluetooth/controller/hal/nrf5/rand.c     |   2 +-
 subsys/bluetooth/controller/hal/rand.h          |   2 +-
 subsys/bluetooth/controller/hci/hci.c           |   4 +-
 subsys/bluetooth/controller/hci/hci_driver.c    |  18 +-
 subsys/bluetooth/controller/hci/hci_internal.h  |   1 -
 subsys/bluetooth/controller/ll/ctrl.c           |   1 +
 subsys/bluetooth/host/Kconfig                   |  63 ++-
 subsys/bluetooth/host/a2dp.c                    |   7 +-
 subsys/bluetooth/host/at.c                      |  38 +-
 subsys/bluetooth/host/at.h                      |  10 +-
 subsys/bluetooth/host/att.c                     |  65 +--
 subsys/bluetooth/host/att_internal.h            |   6 +
 subsys/bluetooth/host/avdtp.c                   |  24 +-
 subsys/bluetooth/host/avdtp_internal.h          |  10 +-
 subsys/bluetooth/host/conn.c                    | 157 +++---
 subsys/bluetooth/host/conn_internal.h           |   4 +-
 subsys/bluetooth/host/gatt.c                    |  12 +-
 subsys/bluetooth/host/hci_core.c                | 504 +++++++++---------
 subsys/bluetooth/host/hci_core.h                |   5 +-
 subsys/bluetooth/host/hci_ecc.c                 |  11 +-
 subsys/bluetooth/host/hci_raw.c                 |   8 +-
 subsys/bluetooth/host/hfp_hf.c                  |   6 +-
 subsys/bluetooth/host/keys.c                    |   6 +-
 subsys/bluetooth/host/keys.h                    |   4 -
 subsys/bluetooth/host/keys_br.c                 |   6 +-
 subsys/bluetooth/host/l2cap.c                   | 108 ++--
 subsys/bluetooth/host/l2cap_br.c                |  32 +-
 subsys/bluetooth/host/l2cap_internal.h          |   8 +-
 subsys/bluetooth/host/log.c                     |   2 -
 subsys/bluetooth/host/monitor.c                 |   1 -
 subsys/bluetooth/host/rfcomm.c                  | 148 ++++-
 subsys/bluetooth/host/rfcomm_internal.h         |  15 +
 subsys/bluetooth/host/sdp.c                     |   6 +-
 subsys/bluetooth/host/smp.c                     | 211 ++++----
 subsys/bluetooth/host/smp_null.c                |   7 +-
 subsys/bluetooth/host/storage.c                 |   1 +
 subsys/bluetooth/host/uuid.c                    |   2 +-
 tests/bluetooth/shell/arduino_101.conf          |   2 +-
 tests/bluetooth/shell/prj.conf                  |   2 +-
 63 files changed, 1479 insertions(+), 852 deletions(-)
 create mode 100644 drivers/bluetooth/hci/spi.c

Change-Id: Ic11028e1f02636a48d95cbe03735af37cea94e25
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>