Merge "Complete Reference RCU keylayout with all buttions" into tm-dev am: db2310a2 am: 340bd0ee

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17803125



Change-Id: I04bc7005eb5353b6f033ef40e720b72074d99f3f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>