update for new audio.h header location

Change-Id: Ic4c62c4037800802427eb7d3c7f5eb8b25d18876
Signed-off-by: Dima Zavin <dima@android.com>
diff --git a/include/media/AudioSystem.h b/include/media/AudioSystem.h
index eb61a87..68cd188 100644
--- a/include/media/AudioSystem.h
+++ b/include/media/AudioSystem.h
@@ -21,7 +21,7 @@
 #include <utils/threads.h>
 #include <media/IAudioFlinger.h>
 
-#include <hardware/audio.h>
+#include <system/audio.h>
 #include <hardware/audio_policy.h>
 
 /* XXX: Should be include by all the users instead */