netdev: fix build on non-Linux
netdev: fix build on non-Linux

Fix typo: virNetDevVLanPtr -> virNetDevVlanPtr.

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