Merge "Use semaphore instead of condition variable" into tm-dev am: 38332d52...

Merge "Use semaphore instead of condition variable" into tm-dev am: 38332d52 am: 52010fe2 am: 64921f06 am: af74c7f3

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/18291016



Change-Id: If83b6157e613ae8bd5bcc80b995d1be82103ae68
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>