also create rz5 and rz6 devices on the pmax

src/etc/etc.pmax/MAKEDEV

@@ -1,6 +1,6 @@
 #!/bin/sh -
 #
-#	$OpenBSD: MAKEDEV,v 1.10 1997/01/19 22:30:17 graichen Exp $
+#	$OpenBSD: MAKEDEV,v 1.11 1997/02/03 10:29:13 graichen Exp $
 #	@(#)MAKEDEV	8.1 (Berkeley) 6/9/93
 #
 
@@ -39,7 +39,7 @@ do
 case $i in
 
 all)
-	sh MAKEDEV std rz0 rz1 rz2 rz3 rz4 tz0 tz1
+	sh MAKEDEV std rz0 rz1 rz2 rz3 rz4 rz5 rz6 tz0 tz1
 	sh MAKEDEV pty0 vnd0 vnd1 vnd2 vnd3 ccd0 ccd1 ccd2 ccd3
 #	sh MAKEDEV tun0 tun1 tun2 tun3
 	sh MAKEDEV bpf0 bpf1 bpf2 bpf3