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

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



Change-Id: I087aca00b33731e4a0f9d911a9a787a1f103332d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>