Updated openstack/openstack
Project: openstack/neutron  0f7cfee155c0e3e216b4a1425ec1fbdde6eeb296

Disallow regular user to update firewall's shared attribute

Shared firewalls should only be operable by  admins.
Currently only admin can provide shared attribute at firewall creation,
so update_firewall should be consistent with that as well.

Change-Id: I093743514637824207b375d724404d51f778d012
Closes-Bug: #1323322