Merge "[DO NOT MERGE] Add setting custom MediaButtonReceiver" into rvc-dev am: 2ad21ed9dd am: acd84f39fa am: 4184badc95

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11629766

Change-Id: Id22e0c91c9b32c141bb64ca5b0c8b47b73e65964