Merge "Binder: migrate off libutils Mutex" into main am: 29c9a960

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2807154



Change-Id: I75f32c87d7a4b81f1cd454c5f6b398aff2b1da4c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>