deal with another dup ioctl; fortunately this is from pcvt and it will die.

usr.bin/kdump/mkioctls

@@ -1,5 +1,5 @@
 #!/bin/sh
-#	$NetBSD: mkioctls,v 1.19 2004/06/22 17:30:52 christos Exp $
+#	$NetBSD: mkioctls,v 1.20 2004/07/08 03:22:32 christos Exp $
 #
 # Copyright (c) 1994
 #	The Regents of the University of California.  All rights reserved.
@@ -71,6 +71,7 @@ BEGIN {
 	keep["SIOCADNAT"] = 1;	# Same as SIOCADAFR
 	keep["SIOCDELST"] = 1;	# Same as SIOCRMNAT
 	keep["CHIOGPICKER"] = 1; # Same as CDIOREADTOCHEADER
+	keep["KBDSTPMAT"] = 1;	# Same as LMREADY, pcvt is gone so ok.
 
 	print ""
 	print "char *ioctlname __P((long));"