Provide default value for vif_type and port_type arguments of vrouter-port-control
Provide default value for vif_type and port_type arguments of vrouter-port-control

This is required to make it backward compatible with its previous version.

Change-Id: I8c2503ed2d19d2ff71d0099cd6a69e725c28c652
Closes-Bug: #1602047

codilime/contrail-controller,codilime/contrail-controller,codilime/contrail-controller,codilime/contrail-controller,codilime/contrail-controller,codilime/contrail-controller