Add override for barbican operator

[vakwetu]

Untested as of yet. But this moves the creation of the route to the openstack operator so that we can take advantage of TLS-E enablement there. This is a prereq for a patch to add the barbican operator to the openstack-operator

[vakwetu]

This looks like its working correctly (at least locally). I managed to test with kubefwd setting up the relevant paths for me. We need this to merge so we can start integrating with openstack-operator

[stuggi]

the change looks good to me

[vakwetu]

acked by @dmendiza , going to merge