[roll third_party/pigweed] pw_sync: Migrate upstream to use InterruptSpinLock

Migrates Pigweed off of SpinLock to use the new InterruptSpinLock
name.

Also updates some stale documentation regarding SystemClock backends
which use InterruptSpinLocks before C++ construction now that there
is a constexpr constructor, as it was already getting updated for
the rename.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/37561

third_party/pigweed Rolled-Commits: 8f4a096bd7064f6..da2a62d8900f84f
Roller-URL: https://ci.chromium.org/b/8852931066291662848
Cq-Cl-Tag: roller-builder:pigweed-experimental-roller
Cq-Cl-Tag: roller-bid:8852931066291662848
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Id3a1db1934e6bd423a702ecb90e43660a1718aba
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/37522
Reviewed-by: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
Commit-Queue: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
1 file changed
tree: 4020de2d04dff7e356feb23fe82e8fdbf2fc86e4
  1. applications/
  2. build_overrides/
  3. pw_board_led/
  4. pw_board_led_arduino/
  5. pw_board_led_host/
  6. pw_board_led_stm32f429i_disc1/
  7. pw_console/
  8. pw_spin_delay/
  9. pw_spin_delay_arduino/
  10. pw_spin_delay_host/
  11. pw_spin_delay_stm32f429i_disc1/
  12. targets/
  13. third_party/
  14. tools/
  15. .gitattributes
  16. .gitignore
  17. .gitmodules
  18. .gn
  19. activate.bat
  20. banner.txt
  21. bootstrap.bat
  22. bootstrap.sh
  23. BUILD.gn
  24. BUILDCONFIG.gn
  25. navbar.md
  26. PW_PLUGINS
  27. README.md
README.md

Pigweed Experimental

This repository contains experimental pigweed modules.

Repository setup

Clone this repo with --recursive to get all required submodules.

git clone --recursive https://pigweed.googlesource.com/pigweed/experimental

This will pull the Pigweed source repository into third_party/pigweed. If you already cloned but forgot to --recursive run git submodule update --init to pull all submodules.