qemu: Correct disk type checking logic for iothreads
qemu: Correct disk type checking logic for iothreads

Finding the right type of disk should check for virtio as bus and
pci as device address type.

Signed-off-by: Boris Fiuczynski <2648abdd55bfebf313fd324b464b047e6eea300e@linux.vnet.ibm.com>
Reviewed-by: Viktor Mihajlovski <a96a137ca8976b5ff3114c85be7aeb3b6464dad7@linux.vnet.ibm.com>

jfehlig/libvirt,datto/libvirt,elmarco/libvirt,shugaoye/libvirt,crobinso/libvirt,andreabolognani/libvirt,fabianfreyer/libvirt,fabianfreyer/libvirt,VenkatDatta/libvirt,taget/libvirt,VenkatDatta/libvirt,VenkatDatta/libvirt,crobinso/libvirt,rlaager/libvirt,olafhering/libvirt,libvirt/libvirt,taget/libvirt,jfehlig/libvirt,jardasgit/libvirt,elmarco/libvirt,andreabolognani/libvirt,shugaoye/libvirt,jardasgit/libvirt,libvirt/libvirt,crobinso/libvirt,jardasgit/libvirt,eskultety/libvirt,nertpinx/libvirt,shugaoye/libvirt,agx/libvirt,zippy2/libvirt,eskultety/libvirt,libvirt/libvirt,zippy2/libvirt,VenkatDatta/libvirt,rlaager/libvirt,rlaager/libvirt,andreabolognani/libvirt,fabianfreyer/libvirt,zippy2/libvirt,agx/libvirt,andreabolognani/libvirt,elmarco/libvirt,jfehlig/libvirt,fabianfreyer/libvirt,agx/libvirt,jfehlig/libvirt,libvirt/libvirt,taget/libvirt,eskultety/libvirt,VenkatDatta/libvirt,agx/libvirt,crobinso/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,shugaoye/libvirt,taget/libvirt,eskultety/libvirt,elmarco/libvirt,zippy2/libvirt,agx/libvirt,shugaoye/libvirt,taget/libvirt,eskultety/libvirt,nertpinx/libvirt,nertpinx/libvirt,elmarco/libvirt,andreabolognani/libvirt,olafhering/libvirt,olafhering/libvirt,jardasgit/libvirt,datto/libvirt,rlaager/libvirt,nertpinx/libvirt,olafhering/libvirt,nertpinx/libvirt,datto/libvirt,rlaager/libvirt,datto/libvirt,datto/libvirt