Bnc829514 roxyBnc829514 roxy

When a compute node changes to a new virtualization host,
/etc/libvirtd/qemu.conf is changed, and libvirtd needs to get
restarted to make the change effective. To avoid timing problems,
all packages have to be installed on the system, before the libvirtd
restart check happens

SUSE-internal reference: bnc#829514