Merge "Revert "Revert "Revert "Ringer mode button state a11y"""" into udc-dev...

Merge "Revert "Revert "Revert "Ringer mode button state a11y"""" into udc-dev am: c8d3d7a5 am: 4ee17647 am: b2723da8 am: b7b263a2

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



Change-Id: I984874ed432553fa2a43df1707f4ff3a898f549b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>