tests: skip test if not running on host with running libvirtd
tests: skip test if not running on host with running libvirtd

Reviewed-by: Michal Privoznik <83d82aaba2eed257f4814b0c239c260c4caaadf0@redhat.com>
Signed-off-by: Daniel P. Berrangé <bb938cf255e055ff3507f2627d214e8e62118fcf@redhat.com>

libvirt/libvirt-php,libvirt/libvirt-php,zippy2/libvirt-php,zippy2/libvirt-php,libvirt/libvirt-php,zippy2/libvirt-php