9534 xhci_portsc should only be installed on x86

*** 25,34 ****
--- 25,35 ----
  # Copyright (c) 2012 by Delphix. All rights reserved.
  # Copyright (c) 2013 DEY Storage Systems, Inc. All rights reserved.
  # Copyright 2014 Garrett D'Amore <garrett@damore.org>
  # Copyright 2016 Toomas Soome <tsoome@me.com>
  # Copyright 2016 Nexenta Systems, Inc.
+ # Copyright 2018 Gary Mills
  #
  
  include ../Makefile.master
  
  #
*** 448,458 ****
          who             \
          whodo           \
          wracct          \
          write           \
          xargs           \
-         xhci            \
          xstr            \
          yes             \
          ypcmd           \
          yppasswd        \
          zdb             \
--- 449,458 ----
*** 479,488 ****
--- 479,489 ----
          biosdev         \
          diskscan        \
          nvmeadm         \
          rtc             \
          ucodeadm        \
+         xhci            \
          xvm
  
  sparc_SUBDIRS=          \
          cvcd            \
          dcs             \