Until https://bugs.launchpad.net/packstack/+bug/1771500
is fixed, temporary switch to ovs in scenario 001.
Also, set inject_partition to the default value of -2 in nova.conf.
We are having problems in the gate in OVH nodes (see [1]), and
doing this prevents us from using the problematic libguestfs code.
[1] - https://bugs.launchpad.net/packstack/+bug/1701032
Change-Id: Ifed85df073104684cd415792785acd12e2f89aa4
Related-Bug: #1771500
Co-Authored-By: Javier Peña <jpena@redhat.com>
(cherry picked from commit e9e6ad87a0
)