Merge "Binder: migrate off libutils Mutex" into main am: 29c9a960a1 am: 00158c5238

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

Change-Id: Ic18aa15153d4a8c35f74e974b3711bd557f8c164
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>