Merge "[Output Switcher] [A11y] Add description for seekbar" into tm-dev am:...

Merge "[Output Switcher] [A11y] Add description for seekbar" into tm-dev am: 14f92d88 am: 491dbedc am: 73a57ad9

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18572029



Change-Id: I186ed7fdf974b4a5bb05b2c8163da921abd75659
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>