cpu: Drop false support for ARM cpu-model
cpu: Drop false support for ARM cpu-model

The ARM CPU driver wrongly reported host CPU model as "host", which made
host-model to be just an alias for host-passthrough. Let's drop this
insanity.

Signed-off-by: Jiri Denemark <62bdf77dc47919a4d59a91822129d14633cfca81@redhat.com>

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