Update comments

We no longer put the filename at start of file.

Change-Id: Ic435b159a23105681e3d4a6cb1ac097bc853302e
diff --git a/include/media/AudioSystem.h b/include/media/AudioSystem.h
index da99620..1916ac5 100644
--- a/include/media/AudioSystem.h
+++ b/include/media/AudioSystem.h
@@ -131,7 +131,7 @@
         NUM_CONFIG_EVENTS
     };
 
-    // audio output descritor used to cache output configurations in client process to avoid frequent calls
+    // audio output descriptor used to cache output configurations in client process to avoid frequent calls
     // through IAudioFlinger
     class OutputDescriptor {
     public: