Merge "Setting layer brightness doesn't need nit info for readback tests" into stage-aosp-udc-ts-dev am: be23bf4f23

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/24944166

Change-Id: Iebcd91a870633c6de4e719a1bc824d771cc76539
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>