Fix nested virt job variant for EM releases

Scenario jobs are not running on EM releases
since job variant name change was missed in [1].
This patch fixes it to match with other variant
that's being used as parent in scenario jobs.

Also include victoria as that is is also an
EM release now.

[1] https://review.opendev.org/c/openstack/neutron-tempest-plugin/+/836912

Change-Id: I14fb72ef373d841547e4cf8caae5ff20a9d99e4b
1 file changed