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

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



Change-Id: I9b1509c0682f46191c493c54a3ca8276f340aa65
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>