netvirt sfc classifier: scenario all in one node still does not work

On a previous patch [1] it was proposed on a all in one node scenario that SFC shall handoff to an egress classifier function the encapsulated packet with the reasoning that this egress classifier function would be in better position to inject the original packet back to it's normal course.

This was to be done by SFC sending back the packet to the dispatcher table.

There was a missing piece in the puzzle and that is that this egress classifier function should be bound to the last SF port.