Merge "Read brightness-related properties from `ro.recovery.ui`" am: 1937b3fd

Original change: https://android-review.googlesource.com/c/platform/bootable/recovery/+/2646359



Change-Id: I75f4d1175be9e831f275e0a120b4d50f8eacafe7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>