Fix seed VM provision

Since I56533ead8357945a42b079fda7edbd9912fc135a (present in 7.0.0.0rc1),
seed VM provisioning fails due to a missing configdrive volume. The
problem is caused by the stackhpc.libvirt-vm role at version 1.8.0, and
the issue is described in
https://github.com/stackhpc/ansible-role-libvirt-vm/issues/45.

This change bumps the requirement for stackhpc.libvirt-vm to v1.10.0,
which includes a fix for the issue.

Change-Id: I7361510a1c9c9c25356c5abd2a68b661c6b52692
Story: 2007063
Task: 37929