Merge "Determine rear display status only based on device states" into udc-dev am: 9188aa60

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22625063



Change-Id: I7050b504f7815150517521656d76470fd040a935
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>