AudioService: Fix typo/grammar in comment.

Change-Id: I311fc5d7531464bbaeef5937c5ff2b757a8e675e
diff --git a/services/core/java/com/android/server/audio/AudioService.java b/services/core/java/com/android/server/audio/AudioService.java
index 473f5db..6584b8f 100644
--- a/services/core/java/com/android/server/audio/AudioService.java
+++ b/services/core/java/com/android/server/audio/AudioService.java
@@ -5372,8 +5372,8 @@
 
     //==========================================================================================
     // Hdmi Cec system audio mode.
-    // If Hdmi Cec's system audio mode is on, audio service should notify volume change
-    // to HdmiControlService so that audio recevier can handle volume change.
+    // If Hdmi Cec's system audio mode is on, audio service should send the volume change
+    // to HdmiControlService so that the audio receiver can handle it.
     //==========================================================================================
 
     private class MyDisplayStatusCallback implements HdmiPlaybackClient.DisplayStatusCallback {