Merge "[BT Broadcast Sink] Add the function for leave and scan QRcode buttons" into tm-dev am: 286682ec8a

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/18181646

Change-Id: If732e278300370c10c61b52e347f79c8d9656a0b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>