hal : Support for another instance of fm recording

   -Added support for one more instance of fm recording
    to play fm over a2dp.

Change-Id: I0c796c5acdc045327a8d43754e7530aab10097d9
diff --git a/hal/audio_hw.h b/hal/audio_hw.h
index 965ac62..07fd027 100644
--- a/hal/audio_hw.h
+++ b/hal/audio_hw.h
@@ -65,6 +65,7 @@
     /* Capture usecases */
     USECASE_AUDIO_RECORD,
     USECASE_AUDIO_RECORD_LOW_LATENCY,
+    USECASE_AUDIO_RECORD_FM_VIRTUAL,
 
     /* Voice usecase */
     USECASE_VOICE_CALL,