qemu: keep websocketGenerated on libvirtd restarts
qemu: keep websocketGenerated on libvirtd restarts

Otherwise after libvirtd restart we come back to issues fixed by
introducing this flag in [1].

[1] 61a0026a : qemu: Fix xml dump of autogenerated websocket

Signed-off-by: Nikolay Shirokovskiy <7fa0e2698a05be944b362bdf5d7736c0162e16c9@virtuozzo.com>
Reviewed-by: John Ferlan <87558058f6f829e5ec976c8ef960720af4ff9c7d@redhat.com>

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