When a pod event happens and a Network Policy with a named port
is already being enforced, the CRD Security Group should be updated
in case the pod is selected by any ingress/egress selector of that
policy and contains a container port with same name as the one defined
in the policy.
Partially Implements: blueprint k8s-network-policies
Change-Id: Ia695306bed7835cefe101b579000f577136a5c07