audio: Rename AUDIO_UNIQUE_ID_USE_PLAYER -> USE_CLIENT

It is now used both for Players and Recorders

Bug: 123312504
Test: android.media.cts.AudioRecordingConfigurationTest
      AudioRecordTest#testAudioRecordInfoCallback
      MediaRecorderTest#testAudioRecordInfoCallback
      manual testing using Oboe and Solo test apps

Change-Id: I288014cb8e8fed45309cc3be375444bddde6e53c
1 file changed