Merge "Setting layer brightness doesn't need nit info for readback tests" into stage-aosp-udc-ts-dev am: be23bf4f23 am: 2d96a0a082 am: 3e82b63ae8 am: d5bd285173

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

Change-Id: I8d75e46fcd5891e800c3dd14162550bd1c8b9da4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>