Merge "libbinder_ndk: clarify onBinderDied/unlinkToDeath interaction" am: 5c1459c010 am: d8fbd43e85

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2333969

Change-Id: I969d8fd12c463d3bd0c1643a1bdcd6ed59f499b5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>