omni: add integration of ThemePicker

Change-Id: Id30a0d84603da305ffe7aea28e904b846a99d1f2
diff --git a/prebuilt/etc/permissions/privapp-permissions-omni.xml b/prebuilt/etc/permissions/privapp-permissions-omni.xml
index b6a8f89..5ed75ad 100644
--- a/prebuilt/etc/permissions/privapp-permissions-omni.xml
+++ b/prebuilt/etc/permissions/privapp-permissions-omni.xml
@@ -77,4 +77,9 @@
         <permission name="android.permission.WRITE_MEDIA_STORAGE"/>
     </privapp-permissions>
 
+    <privapp-permissions package="com.android.customization">
+        <permission name="android.permission.WRITE_SECURE_SETTINGS"/>
+        <permission name="android.permission.SET_WALLPAPER_COMPONENT"/>
+        <permission name="android.permission.CHANGE_OVERLAY_PACKAGES"/>
+    </privapp-permissions>
 </permissions>