qemu: hotplug: report error when changing rom enabled attr for net iface
qemu: hotplug: report error when changing rom enabled attr for net iface

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1599513

Signed-off-by: Katerina Koukiou <e327f8a3293ed5cbf737faab85e97cd2d0b8b9c3@redhat.com>
Reviewed-by: Ján Tomko <4cab11cfb98d3c937327354a78eb07dbb6ee2bc6@redhat.com>

fabianfreyer/libvirt,andreabolognani/libvirt,jardasgit/libvirt,eskultety/libvirt,andreabolognani/libvirt,olafhering/libvirt,zippy2/libvirt,olafhering/libvirt,crobinso/libvirt,fabianfreyer/libvirt,zippy2/libvirt,crobinso/libvirt,andreabolognani/libvirt,fabianfreyer/libvirt,eskultety/libvirt,olafhering/libvirt,jardasgit/libvirt,jfehlig/libvirt,crobinso/libvirt,crobinso/libvirt,nertpinx/libvirt,jardasgit/libvirt,zippy2/libvirt,andreabolognani/libvirt,eskultety/libvirt,jfehlig/libvirt,jfehlig/libvirt,jardasgit/libvirt,eskultety/libvirt,nertpinx/libvirt,jardasgit/libvirt,nertpinx/libvirt,fabianfreyer/libvirt,andreabolognani/libvirt,nertpinx/libvirt,libvirt/libvirt,nertpinx/libvirt,libvirt/libvirt,fabianfreyer/libvirt,libvirt/libvirt,jfehlig/libvirt,zippy2/libvirt,libvirt/libvirt,olafhering/libvirt,eskultety/libvirt