Configure policy of mediaserver threads

Change-Id: Ifd825590ba36996064a458f64453a94b84722cb0
diff --git a/include/private/media/AudioTrackShared.h b/include/private/media/AudioTrackShared.h
index af2db93..469f5ff 100644
--- a/include/private/media/AudioTrackShared.h
+++ b/include/private/media/AudioTrackShared.h
@@ -53,6 +53,7 @@
 #define CBLK_RESTORED_MSK       0x0040
 #define CBLK_RESTORED_ON        0x0040  // track has been restored after invalidation
 #define CBLK_RESTORED_OFF       0x0040  // by AudioFlinger
+#define CBLK_FAST               0x0080  // AudioFlinger successfully created a fast track
 
 // Important: do not add any virtual methods, including ~
 struct audio_track_cblk_t