With D19908 we are checking all user wirings against the
vm_max_user_wire limit, whereas previously it applied only to mlock(2)
callers. In particular, without this diff, wired bhyve VMs will be
subject to the limit, which is undesireable. Change vmm(8) to mark
wired segments as system-wired instead.
Note that the VM's vmspace is not a process' vmspace; it is created and
managed by vmm(4). Thus I suspect that system wiring is conceptually
more correct anyway.