Merge "Handle multiple active bluetooth devices" into rvc-dev am: 4b647272...

Merge "Handle multiple active bluetooth devices" into rvc-dev am: 4b647272 am: 4d65a4c3 am: 1597dfcf

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11947520

Change-Id: Iacfeee00871987b2c37845e8a4be93a5ea7b49bb