Add a mechanism for PMC to return status

Implement PMC Status Logger to write PMC status to a file
Re-org the A2dp code so it is easy to write status to a file

Bug: 35802203
Test: Done
Change-Id: I664307b10a678fdcf405649efebd66172a0d4606
6 files changed
tree: caf43a59185ca7f8fabfbeff02346a5fcabcb044
  1. PMC/
  2. sl4n/
  3. PREUPLOAD.cfg