Updated openstack/openstack
Project: openstack/heat  e70eb089a1cfc12b5068a9abdeb91cde95acb6d5

Modify the way to get 'network_id' of the port

This patch change to get 'network_id' from port info, instead of
from subnet info.

Implements blueprint implement-ec2eip-updatable

Change-Id: I51ed7e71af4c7223df9e399e189389fd655a9746