Add new MANAGE_WALLPAPER_EFFECTS_GENERATION permission for the cts test

Bug: 213238425
Test: build and presubmit
Change-Id: If6507ac871e01bebb770e85bc4572b7e3d2cb5d9
diff --git a/packages/Shell/AndroidManifest.xml b/packages/Shell/AndroidManifest.xml
index 5b9b74a..6db8bc3 100644
--- a/packages/Shell/AndroidManifest.xml
+++ b/packages/Shell/AndroidManifest.xml
@@ -245,6 +245,7 @@
     <uses-permission android:name="android.permission.MANAGE_APP_PREDICTIONS" />
     <uses-permission android:name="android.permission.MANAGE_SEARCH_UI" />
     <uses-permission android:name="android.permission.MANAGE_SMARTSPACE" />
+    <uses-permission android:name="android.permission.MANAGE_WALLPAPER_EFFECTS_GENERATION" />
     <uses-permission android:name="android.permission.MANAGE_UI_TRANSLATION" />
     <uses-permission android:name="android.permission.NETWORK_SETTINGS" />
     <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />