Whitelist privapp MANAGE_EXTERNAL_STORAGE permission

After adding MANAGE_EXTERNAL_STORAGE permission to several apps on the
system partition, we should whitelist them

Test: m
Bug: 144914977
Change-Id: Ia4401904e23193b8628071d6a2a6d789faf0ece5
diff --git a/data/etc/com.android.systemui.xml b/data/etc/com.android.systemui.xml
index 40de83a..5d2e303 100644
--- a/data/etc/com.android.systemui.xml
+++ b/data/etc/com.android.systemui.xml
@@ -58,6 +58,7 @@
         <permission name="android.permission.WATCH_APPOPS"/>
         <permission name="android.permission.WRITE_DREAM_STATE"/>
         <permission name="android.permission.WRITE_MEDIA_STORAGE"/>
+        <permission name="android.permission.MANAGE_EXTERNAL_STORAGE"/>
         <permission name="android.permission.WRITE_SECURE_SETTINGS"/>
         <permission name="android.permission.WRITE_EMBEDDED_SUBSCRIPTIONS"/>
         <permission name="android.permission.CONTROL_DISPLAY_COLOR_TRANSFORMS" />