Add CONNECTIVITY_USE_RESTRICTED_NETWORKS permission to shell

The shell *already had* the privileges granted by this permission due to
specific code in netd, and it lost those privileges when it gained the
CHANGE_NETWORK_STATE permission. Explicitly add
CONNECTIVITY_USE_RESTRICTED_NETWORKS so that it can obtain sufficient
permission in netd no matter CHANGE_NETWORK_STATE is set or not.

Remove a duplicate row by the way.

Bug: 185071689
Test: atest NetdClientTest#protectFromVpnTcp6
Change-Id: I64bc321de2c83378ce7bc8d9eb3044ae7772faca
diff --git a/packages/Shell/AndroidManifest.xml b/packages/Shell/AndroidManifest.xml
index 9a3b76f..7b7bec7 100644
--- a/packages/Shell/AndroidManifest.xml
+++ b/packages/Shell/AndroidManifest.xml
@@ -391,6 +391,9 @@
     <!-- Permission required for testing system audio effect APIs. -->
     <uses-permission android:name="android.permission.MODIFY_DEFAULT_AUDIO_EFFECTS"/>
 
+    <!-- Permission required for running networking unit tests -->
+    <uses-permission android:name="android.permission.CONNECTIVITY_USE_RESTRICTED_NETWORKS" />
+
     <!-- Permissions required for CTS test - TunerTest -->
     <uses-permission android:name="android.permission.ACCESS_TV_DESCRAMBLER" />
     <uses-permission android:name="android.permission.ACCESS_TV_TUNER" />