Merge "[DO NOT MERGE] Add setting custom MediaButtonReceiver" into rvc-dev am: 2ad21ed9dd am: 7f2fb0b21b

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

Change-Id: I0a83c39793f46383eddac2011173f14948c90b49