Merge "Binder: migrate off libutils Mutex" into main am: 29c9a960 am: 156adea4

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



Change-Id: I188beabc926a4c1932fc225e44ce33a45f7c2dcd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>