Use corresponding profile to get active bluetooth device

- Do not use streamType to decide which active device should return.
  Base on b/80453878 comment#6, the steamType intent will only be sent
  if an action is made on stream volume or a media route is changed:
  For instance when a call to setStreamVolume() or getDeviceForStream() is made.
  It is not broadcast on actual routing changes.
  It should not be used as an indicator that the route changed during a call.
  There is no callback API and the only option is polling with getDeviceForStream().
- Use corresponding profile to get active bluetooth device
  instead of streamType
- Add test to verify the result of findActiveDevice()
  eg:
  1. A2dp device active, hearing aid device not active : return a2dp device
  2. A2dp device not active, hearing aid device not active : return null
  3. hfp device active, hearing aid device not active : return hfp device
  4. hfp device not active, hearing aid device not active : return null

Bug: 80453878
Test: make -j42 RunSettingsRoboTests
Change-Id: I5bd94899a5d508e60ce911da9689b727ad1fc20c