Merge "Revert "Revert "Ringer mode button state a11y""" into udc-dev am: 66e2d492 am: 783bf63c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23616816



Change-Id: If8e6cc50a30658381f248d863f5e81cb6932f32e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>