tests: Create a more realistic vHBA
tests: Create a more realistic vHBA

Modify the code to react more like a real HBA -> vHBA creation.

Currently the code would just modify the input XML definition to
set the name to a wwpn and then modify the scsi_host capability
entry for the defintion to change the scsi_host# and unique_id
before adding that into the node device.

This patch does things a bit better. It finds and copies a known
existing vHBA (scsi_host11) in the node_device database and modifies
that definition to change the name to scsi_host12 and set the wwnn/
wwpn to what the input XML would expect before adding the def to the
node device object list.

Then rather than create a returned "dev" using the (poorly) mocked
name - perform the lookup using the new device name.

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