Add priv-app permission

Necessary for Hawk to boot

Bug: 151155652
Test: boot hawk
Change-Id: Idd456a01cdb40a6ab1175b16440b96d5778b4cda
diff --git a/data/etc/com.android.documentsui.xml b/data/etc/com.android.documentsui.xml
index b6671db..1e570ba 100644
--- a/data/etc/com.android.documentsui.xml
+++ b/data/etc/com.android.documentsui.xml
@@ -20,6 +20,7 @@
         <permission name="android.permission.INTERACT_ACROSS_USERS"/>
         <!-- Permissions required for reading and logging compat changes -->
         <permission name="android.permission.LOG_COMPAT_CHANGE"/>
+        <permission name="android.permission.MODIFY_QUIET_MODE"/>
         <permission name="android.permission.READ_COMPAT_CHANGE_CONFIG"/>
     </privapp-permissions>
 </permissions>