Grant MODIFY_SETTINGS_OVERRIDEABLE_BY_RESTORE permission to Shell

Bug: 151096665
Test: presubmit

This is needed for CTS tests to be able to call
Settings.System.putString(..., overrideableByRestore=true)

Change-Id: I7eb64df187bd59509067130c31c2e804f75d9830
diff --git a/packages/Shell/AndroidManifest.xml b/packages/Shell/AndroidManifest.xml
index 181e0c0..8f859b2 100644
--- a/packages/Shell/AndroidManifest.xml
+++ b/packages/Shell/AndroidManifest.xml
@@ -275,6 +275,9 @@
     <!-- Permission needed to test registering pull atom callbacks -->
     <uses-permission android:name="android.permission.REGISTER_STATS_PULL_ATOM" />
 
+    <!-- Permission needed to modify settings overrideable by restore in CTS tests -->
+    <uses-permission android:name="android.permission.MODIFY_SETTINGS_OVERRIDEABLE_BY_RESTORE" />
+
     <application android:label="@string/app_label"
                 android:theme="@android:style/Theme.DeviceDefault.DayNight"
                 android:defaultToDeviceProtectedStorage="true"