Switch ovh-gra1 back to qcow2 images
Switch ovh-gra1 back to qcow2 images

It looks like the upload issue we are having with OVH are not related
to image type. So, switch back to qcow2 to save some bandwidth.

Change-Id: I68ec9748ba5a7a2eb7b280e29751411eca864181
Signed-off-by: Paul Belanger <e7139c8e6c4ea75cc1c287ce081b2dc0f3ab39ec@redhat.com>

openstack-infra/project-config,Tesora/tesora-project-config,openstack-infra/project-config,Tesora/tesora-project-config