overlay: frameworks: allow gms to access persistent data partition

This fixes nonfunctioning factory reset protection and addresses
numerous PersistentDataBlockService errors during boot up.

Change-Id: Ifb24b2cffc814a3c2f61eda619f2a5cbe173d0f8
(cherry picked from commit 247e67dfc852e1667e05e42e1216d7a92ecc35ea)

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

@@ -78,4 +78,7 @@
     <!--  Maximum number of supported users -->
     <integer name="config_multiuserMaximumUsers">4</integer>
 
+    <!-- Flag indicating which package name can access the persistent data partition -->
+    <string name="config_persistentDataPackageName" translatable="false">com.google.android.gms</string>
+
 </resources>