Merge "sf: Allow SystemServer to set the display brightness" am: 9861ecb7c8 am: 22cf144ad3

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2259832

Change-Id: Ibfb327bbbfec0c32c836ca73c695bc8559417fab
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>