Merge "Handle multiple active bluetooth devices" into rvc-dev am: 4b647272 am: 8444f9f5 am: 3439bf60 am: 471be51b

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

Change-Id: Ie7533f5b71589deb365fec2868992d9b3cdab83d