Updated openstack/openstack
Project: openstack/neutron  4475c813ee271f3f3c502f43cd0bcca2d5502c62

Disallow unsharing used firewall policy

When admin policy p1 is shared and is used by firewall f1 of different tenant,
then updating p1 with shared=False should not be allowed as it is in use.

Change-Id: I7c753f9d8a25a7edc40233316398475c8ad3efe9
Closes-bug: #1334994