Merge "Add id for keyboard backlight container" into udc-dev am: 1a1cc48d...

Merge "Add id for keyboard backlight container" into udc-dev am: 1a1cc48d am: fed2847b am: b7dd8ee7 am: 026ad105

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22907721



Change-Id: Ia18bed7f3521631f39c6f028881626429ad44e18
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>