Merge "Revert "Revert "Revert "Ringer mode button state a11y"""" into udc-dev am: c8d3d7a5 am: 88650a5f am: d436f9e4

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



Change-Id: I0fd141fc5e77868a858a29efa7f4f8cb2417bcbb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>