Merge "Wallpaper animation for keyguard unlocking." into udc-dev am:...

Merge "Wallpaper animation for keyguard unlocking." into udc-dev am: 6f0ed612 am: 9c094277 am: 92b563ea am: 1ff671b2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22336604



Change-Id: Ie78c7a3ac09147d0490f0637bbbf2644c4a6fc8c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>