Add bs_notimpl_bs_mmap into the bus space struct to make this cope with

the recent ARM bus_space_mmap() change and hence make this compile.

sys/arch/hpcarm/sa11x0/sa11x0_io.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: sa11x0_io.c,v 1.4 2001/07/28 18:12:46 chris Exp $	*/
+/*	$NetBSD: sa11x0_io.c,v 1.5 2001/09/10 15:47:38 pooka Exp $	*/
 
 /*
  * Copyright (c) 1997 Mark Brinicombe.
@@ -73,6 +73,9 @@ struct bus_space sa11x0_bs_tag = {
 	/* get kernel virtual address */
 	sa11x0_bs_vaddr,
 
+	/* mmap bus space for userland */
+	bs_notimpl_bs_mmap,
+
 	/* barrier */
 	sa11x0_bs_barrier,