Merge "Only send brightnessChangeEvent if display is on" into udc-dev am: d02f519e am: 0ddf9f3f am: 9960c65a am: 10039540

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23124062



Change-Id: Ic59fdd0c27df74730a9ee7f2e9e2b8d4af8df946
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>