tree 484fa88f64d548d920d6a5e6903d622197c52882
parent a24917883fdb9fe627522538e4aa6e60ca7ae52f
author Saurav Das <saurav.das@opennetworking.org> 1585016075 -0700
committer Saurav Das <saurav.das@opennetworking.org> 1585087770 -0700

VOL-2800 fix for missing DHCP flows on NNI port after OLT delete and recreation.

Sometimes the NNI port can be in disabled state when VOLTHA connects to ONOS.
Because the port exists but is disabled at this point, NNI flows will not get programmed.
Also the port will not be `added` later as it is already there.
So again NNI flows will not be programmed as there will be no PORT_ADDED message.
As a result, we must handle the PORT_UPDATED case for NNI ports as well.

Change-Id: Ie9a7fcbe91a8181c54fcfa3aa5ae5c26bc64bb0e