Merge "Merge "Disable group volume control bar in output switcher systemUI...

Merge "Merge "Disable group volume control bar in output switcher systemUI dialog" into sc-dev am: 3245ab13 am: ca4d4d88" into sc-v2-dev-plus-aosp am: a27e9584

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14781656

Change-Id: I09f748e43522246615047eb8ffa39d08af2d2e02