Change Priority Only mode defaults on watches

Changes Priority Only mode defaults on watches to the following:
Allow starred contacts to go through only. Repeated calls on.
Calls, messages, reminders, events off

BUG: 28640779
Change-Id: I89d57de58a8c3bb62432f97e96b60c653745d303

core/res/res/xml-watch/default_zen_mode_config.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright 2016, The Android Open Source Project
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+
+<!-- Default configuration for zen mode.  See android.service.notification.ZenModeConfig. -->
+<zen version="2">
+    <!-- Allow starred contacts to go through only. Repeated calls on.
+         Calls, messages, reminders, events off.-->
+    <allow from="2" repeatCallers="true" calls="false" messages="false" reminders="false"
+           events="false"/>
+</zen>