[libvirt] New libvirt-tck failure with libvirt 5.2.0

[Jim Fehlig]

I noticed libvirt-tck test domain/207-disk-media-change.t started failing after 
updating to libvirt 5.2.0. A bisection fingered commit f1d65853

commit f1d6585300001c7b23b8796a0faa4411c3531996
Author: Daniel Henrique Barboza <danielhb413 at gmail.com>
Date:   Fri Mar 15 18:06:45 2019 -0300

     domain_conf: check device address before attach

This commit prevents a media change on CDROM devices.

Regards,
Jim