Merge "Do not pass the volume key event to remote sessions" into sc-dev am: f408df6338 am: e394f04024 am: 3db3fc58f0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15373618

Change-Id: I968b4ee1f34e42e71ee72ccadc548b05afd21b19