Merge "Replacing getActiveDevice by btAdapter.getActiveDevices()" am: fa9d5b2e03 am: 5d85fee641 am: c02965ec5d am: bb30f2f007

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1967621

Change-Id: I3b52d5ed542d0c8cf630e840b3c559c023b2fa7a