Corrects a "vl_unwire: page is not wired" and "kernel memory fault" panic
when the system is configured with gh_chunks or rad_gh_regions enabled and
new_wire_method = 1.



"vl_unwire: page is not wired"

  boot
  panic
  vl_unwire
  u_map_wire
  lw_unwire_new
  vm_map_pageable
  rdg_unwire_iodesc
  rdg_post_snd
  rdg_io_post
  rdg_syscall
  syscall
  _Xsyscall


"kernel memory fault"

  panic
  trap
  XentMM
  vl_unwire
  u_map_wire
  lw_unwire_new
  vm_map_pageable
  rdg_unwire_iodesc
  rdg_post_snd
  rdg_io_post
  rdg_syscall
  syscall
  _Xsyscall

