Merge changes I0b88bc8b,I60d884db,I436858e7,Iaaace0e6,Ie7ee84c3, ...

* changes:
  ethernet: cleanup updateConfiguration tests
  ethernet: fix callbacks for running interfaces
  ethernet: test callbacks when adding running interface
  ethernet: ensure EthernetOutcomeReceiver receives only one result
  ethernet: fix enable/disableInterface result
  ethernet: remove enable/disable interface unit test