vz: add mode of unix socket serial device to xml dump
vz: add mode of unix socket serial device to xml dump

Signed-off-by: Nikolay Shirokovskiy <7fa0e2698a05be944b362bdf5d7736c0162e16c9@virtuozzo.com>

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