Temporary fix for both normal tracks & fast tracks

If there is at least one active fast track, it forces a mixer
status of ready, which messes up the logic for normal track underruns.

Change-Id: I9de2fcaef090e2c2f99682333af3d3dd618b0d6b
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 0b73a30..f10295f 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -1072,6 +1072,8 @@
         // mixer status returned by prepareTracks_l()
         mixer_state                     mMixerStatus; // current cycle
                                                       // previous cycle when in prepareTracks_l()
+        mixer_state                     mMixerStatusIgnoringFastTracks;
+                                                      // FIXME or a separate ready state per track
 
         // FIXME move these declarations into the specific sub-class that needs them
         // MIXER only