Updated openstack/openstack
Project: openstack/tempest  4b1b8cfd4526203e5706ec387cf6362ecaa5ed5b

Use list comprehension in create_bulk_networks

There is no need to pass size of list to create_bulk_networks in
network_client_base since it can be implemented with list comprehension.

Change-Id: I7eb8c7725d9569ad7c2fe853b72a51d10fe65bd1