Merge "Add key layout and device file for Reference RCU" am: 9d396145ef am: eb20fced3d am: e5b4ebe3f4

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1521837

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: If4e82d9c80739684faa3638d207b805c95153dbd