Merge "Fix Talkback focus to the background" into tm-dev am: d09e8af218

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18467059

Change-Id: I3818e8910114d730076be90bf98be256acdd1e6f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>