Bug#1023764: Bug 1023764

[Brian Haley]

It looks like the problem is that networking-l2gw is requiring a version 
of neutron that doesn't have this method. I've pushed a change that 
might solve the issue:

https://review.opendev.org/c/x/networking-l2gw/+/866620
Unless it's easier to just dump this in a package file?