Merge "Support talkback with new Udfps Overlay on keyguard" into udc-dev am: 2c934288

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22341248



Change-Id: Ic44bc4398ec14d1fb05b464d8082ade9076ff5e9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>