Fix log type used for logging silence.

Change-Id: I8d8c12e73fa0536ff5b88800bfb8b7bb699444c8
diff --git a/src/com/android/server/telecom/Call.java b/src/com/android/server/telecom/Call.java
index 0cf2373..6032b47 100644
--- a/src/com/android/server/telecom/Call.java
+++ b/src/com/android/server/telecom/Call.java
@@ -1014,7 +1014,7 @@
             Log.w(this, "silence() request on a call without a connection service.");
         } else {
             Log.i(this, "Send silence to connection service for call %s", this);
-            Log.event(this, Log.Events.STOP_DTMF);
+            Log.event(this, Log.Events.SILENCE);
             mConnectionService.silence(this);
         }
     }
diff --git a/src/com/android/server/telecom/Log.java b/src/com/android/server/telecom/Log.java
index f0ee3fe..e6e85ba 100644
--- a/src/com/android/server/telecom/Log.java
+++ b/src/com/android/server/telecom/Log.java
@@ -82,6 +82,7 @@
         public static final String MUTE = "MUTE";
         public static final String AUDIO_ROUTE = "AUDIO_ROUTE";
         public static final String ERROR_LOG = "ERROR";
+        public static final String SILENCE = "SILENCE";
 
         /**
          * Maps from a request to a response.  The same event could be listed as the