overlay: Define default Wellbeing Package

Change-Id: I7fcd851b5c89e9deda2979b206ff784f8b56b346

overlay/common/frameworks/base/core/res/res/values/config.xml

@@ -77,4 +77,11 @@
 
     <!-- Whether or not we should show the option to show battery percentage -->
     <bool name="config_battery_percentage_setting_available">false</bool>
+
+    <!-- The package name for the default wellbeing app.
+         This package must be trusted, as it has the permissions to control other applications
+         on the device.
+         Example: "com.android.wellbeing"
+     -->
+    <string name="config_defaultWellbeingPackage">com.google.android.apps.wellbeing</string>
 </resources>