hyperv: store WMI version in hypervPrivate.
hyperv: store WMI version in hypervPrivate.

Hyper-V 2012+ uses a new "v2" version of Msvm_* WMI classes so we will
store that info in hypervPrivate so that it is easily accessbile in the
driver API callbacks and handled accordingly.

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