Fixing strict mode violations in voip module.

There is still one more violation in hangouts that i will address in a separate cl.

PiperOrigin-RevId: 159955865
Change-Id: I61cb65d5f099baae497dfe2daddb4f7da6866ad6
diff --git a/java/com/android/dialer/constants/TrafficStatsTags.java b/java/com/android/dialer/constants/TrafficStatsTags.java
index 4e61404..13c3e2c 100644
--- a/java/com/android/dialer/constants/TrafficStatsTags.java
+++ b/java/com/android/dialer/constants/TrafficStatsTags.java
@@ -25,4 +25,5 @@
   public static final int DOWNLOAD_LOCATION_MAP_TAG = 0xd000;
   public static final int REVERSE_GEOCODE_TAG = 0xd001;
   public static final int VISUAL_VOICEMAIL_TAG = 0xd002;
+  public static final int DIALER_VOIP_TAG = 0xd003;
 }