conf: add virDomainControllerDefNew()
conf: add virDomainControllerDefNew()

There are some non-0 default values in virDomainControllerDef (and
will soon be more) that are easier to not forget if the remembering is
done by a single initializer function (rather than inline code after
allocating the obejct with generic VIR_ALLOC().

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