Merge "Activate flag for Light Reveal Effect" into udc-dev am: 53ea0747 am: 646bc9b1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23088356



Change-Id: Ie60b022302d4a4b140c042c0fce6e72ab609fc19
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>