Give Shell the NOTIFY_PENDING_SYSTEM_UPDATE permission

This is required for GTS testing it, rather than having to instrument
GMS Core.

Bug: 182271592
Test: tested as part of other CLs in this topic
Change-Id: Id56e0d206afe0a9069d1510a3dae9a07141fff60
diff --git a/packages/Shell/AndroidManifest.xml b/packages/Shell/AndroidManifest.xml
index 959b5ca..bea4f0e 100644
--- a/packages/Shell/AndroidManifest.xml
+++ b/packages/Shell/AndroidManifest.xml
@@ -563,6 +563,9 @@
     <!-- Permission required for CTS test - GlobalSearchSessionPlatformCtsTests -->
     <uses-permission android:name="android.permission.READ_GLOBAL_APP_SEARCH_DATA" />
 
+    <!-- Permission required for GTS test - PendingSystemUpdateTest -->
+    <uses-permission android:name="android.permission.NOTIFY_PENDING_SYSTEM_UPDATE" />
+
     <application android:label="@string/app_label"
                 android:theme="@android:style/Theme.DeviceDefault.DayNight"
                 android:defaultToDeviceProtectedStorage="true"