Bluetooth: Rename bt_conn_lookup to bt_conn_lookup_handle

To take multiple different ways of looking up connections rename the
existing too generic bt_conn_lookup to bt_conn_lookup_handle.

Change-Id: I1c4965ad76738fa08ccca91b28cda552c9a88373
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
3 files changed