Replace BroadcastReceiver.goAsync() with IntentService

to make Gallery run on older API.

Change-Id: I30dacb38eb4e70ed3f89135544d6c514d0379add
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 2a69ce1..5fc5015 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -322,6 +322,7 @@
                 <data android:scheme="package"/>
             </intent-filter>
         </receiver>
+        <service android:name="com.android.gallery3d.app.PackagesMonitor$AsyncService"/>
         <receiver android:name="com.android.camera.CameraButtonIntentReceiver">
             <intent-filter>
                 <action android:name="android.intent.action.CAMERA_BUTTON"/>