Drop Down list back port
back ported Abishek's Drop Down list change for creating network profile

Conflicts:

	openstack_dashboard/dashboards/router/nexus1000v/forms.py
	openstack_dashboard/dashboards/router/nexus1000v/templates/nexus1000v/_create_network_profile.html

Conflicts:
	openstack_dashboard/dashboards/router/nexus1000v/forms.py