add ticker to enqueue message for easier debugging

Bug: 22462619
Change-Id: Iadb28d251b55c1a1f241c0d0a4fb8e117b8030c0

Author: cwren

core/java/android/app/Notification.java

@@ -1819,6 +1819,9 @@ public String toString() {
         } else {
             sb.append("null");
         }
+        if (this.tickerText != null) {
+            sb.append(" tick");
+        }
         sb.append(" defaults=0x");
         sb.append(Integer.toHexString(this.defaults));
         sb.append(" flags=0x");