Fix issue #62342672: API Review: OPSTR_ACTIVATE_VPN SystemApi

Add a new platform-only permission for being able to change
app ops mode, so nothing outside of the platform can do this.

Bug: 62342672
Test: Booted, ran, settings works, shell works, apps install
Change-Id: I372e649c019a8f9b95919ff0da6f56612d7061c2
diff --git a/packages/Shell/AndroidManifest.xml b/packages/Shell/AndroidManifest.xml
index 937b939..589ae2a 100644
--- a/packages/Shell/AndroidManifest.xml
+++ b/packages/Shell/AndroidManifest.xml
@@ -118,6 +118,7 @@
     <uses-permission android:name="android.permission.REGISTER_CONNECTION_MANAGER" />
     <uses-permission android:name="android.permission.REGISTER_SIM_SUBSCRIPTION" />
     <uses-permission android:name="android.permission.GET_APP_OPS_STATS" />
+    <uses-permission android:name="android.permission.MANAGE_APP_OPS_MODES" />
     <uses-permission android:name="android.permission.VIBRATE" />
     <uses-permission android:name="android.permission.MANAGE_ACTIVITY_STACKS" />
     <uses-permission android:name="android.permission.ACTIVITY_EMBEDDING" />