in ofbattach(), don't both doing an ofbprint() by hand if the root node.

The old ofbprint() wasn't particularly good (it forced the root node
to have a 'name' property, which apparently violates the OFW spec), and
the new one (though it normally prints more useful information) has
nothing useful to say about the root node.  It's not clear to me that
'ofroot' should exist at all.

sys/dev/ofw/ofbus.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: ofbus.c,v 1.7 1998/02/02 22:00:07 cgd Exp $	*/
+/*	$NetBSD: ofbus.c,v 1.8 1998/02/03 00:43:46 cgd Exp $	*/
 
 /*
  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
@@ -89,9 +89,6 @@ ofbattach(parent, dev, aux)
 	struct ofprobe probe;
 	int units;
 
-	if (!parent)
-		ofbprint(aux, 0);
-
 	printf("\n");
 
 	/*