Update sideways Ironic job

Sideways Ironic job is currently using the default libvirt driver on
the new side of the upgrade.  This sets the required virt driver
in the job.  This also enables Neutron for the job, which is required
for the devstack Ironic deployment.

Change-Id: I3118cb3322a93ad5873074765f6eef6c9d9c4acb
Merge "Update sideways Ironic job"