Add format parameter to getTrackName() and track_t

Change-Id: Ia152a839014e235fbfb656104c15d7c1b456d02e
Signed-off-by: Andy Hung <hunga@google.com>
diff --git a/services/audioflinger/Tracks.cpp b/services/audioflinger/Tracks.cpp
index 1d46f87..222ec53 100644
--- a/services/audioflinger/Tracks.cpp
+++ b/services/audioflinger/Tracks.cpp
@@ -383,7 +383,7 @@
     }
     mServerProxy = mAudioTrackServerProxy;
 
-    mName = thread->getTrackName_l(channelMask, sessionId);
+    mName = thread->getTrackName_l(channelMask, format, sessionId);
     if (mName < 0) {
         ALOGE("no more track names available");
         return;