Merge "Use announceForAccessibility to workaround Talkback rate-limitation" into udc-d1-dev am: cb7d38e282 am: baf56acdaa

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24305681

Change-Id: I14d7ac57070c5fb245474b03e5c2d8678b3ef019
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>