news: Announce dropping support for Xen 4.4 and 4.5
news: Announce dropping support for Xen 4.4 and 4.5

Signed-off-by: Jim Fehlig <39929b5b86d72d51fceac59b52303e3fe8a3083e@suse.com>
ACKed-by: Michal Privoznik <83d82aaba2eed257f4814b0c239c260c4caaadf0@redhat.com>

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