Grant dev tools system permission to trigger media-scan service

Google add the action ACTION_MEDIA_MOUNT into the list of
protected boradcast, so that ordinary apps cannot trigger
media scanning by directly sending the action out. The system
built-in dev tool is granted system permission so that it
will not crash when executing media scaning tools.

Change-Id: I19797e61ba829df39d2b66f209cf41bf6565170f
diff --git a/apps/Development/AndroidManifest.xml b/apps/Development/AndroidManifest.xml
index 74d2f42..c1233a6 100644
--- a/apps/Development/AndroidManifest.xml
+++ b/apps/Development/AndroidManifest.xml
@@ -16,7 +16,8 @@
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
         package="com.android.development"
-        android:versionCode="1" android:versionName="1.0">
+        android:versionCode="1" android:versionName="1.0"
+        android:sharedUserId="android.uid.system">
     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />