Monitoring of recording: uid of recording session

Pass uid of recording session along with other existing information
  in the recording monitoring callback.
Define new structure, record_client_info, to group uid (new),
  session id (existing) and source (existing) and simplify
  method signatures and marshalling code.

Test: run cts -m CtsMediaTestCases -t android.media.cts.AudioRecordingConfigurationTest#testAudioManagerGetActiveRecordConfigurations
Bug 62579636

Change-Id: I18f66d7e55640a21f31021416a12a3e8094c3690