Use android.permission.CHANGE_OVERLAY_PACKAGES in DocumentsUI

DocumentsUI run-time calling OverlayManager.setEnabled()
The API was restrict by enforceChangeOverlayPackagesPermission()
Ensure privapp-permissions CHANGE_OVERLAY_PACKAGES added in whitelist

Bug: 128689309
Bug: 131331107
Bug: 132671058
Bug: 132759377
Bug: 132783782

Test: make sargo-userdebug
Test: make marlin-userdebug
Test: make aosp_x86_64-eng
Test: atest DocumentsUIGoogleTests
Test: manual flash ROM and launch DocumentsUI
Change-Id: If1c97a68ea53b6eb65b7b0bee016745f5b951a58
diff --git a/Android.bp b/Android.bp
index 7991dcd..764dc49 100644
--- a/Android.bp
+++ b/Android.bp
@@ -99,4 +99,6 @@
     resource_dirs: [
         "res",
     ],
+
+    required: ["privapp_whitelist_com.android.documentsui"],
 }