Update src/com/cyanogenmod/updater/receiver/NotificationClickReceiver.java

Maybe this modification will not block every `BroadcastReceiver` for other `android.intent.action.DOWNLOAD_NOTIFICATION_CLICKED` once that CMupdater has ran at least once.

NOT TESTED. This was just to bring some attention. Sorry for this.

For reference: http://stackoverflow.com/questions/15068353/is-it-possible-that-two-broadcastreceiver-from-two-apps-based-on-the-same-broad