RHELPLAN-134587 s390x: Subsitute usage of mdevctl by libvirt's nodedev API
Jira reference https://issues.redhat.com/browse/RHELPLAN-134587
Libvirt integrates with mdevctl and should be used to define mediated devices. Substitute the usage by usage of the nodedev API for s390x hardware.
Signed-off-by: Sebastian Mitterle smitterl@redhat.com