Merge "Revert "Revert "Revert "Ringer mode button state a11y"""" into udc-dev am: c8d3d7a5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23649371



Change-Id: I6f865a6385afb66f2ada4530cbc362f0b1f894ab
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>