Libc update to simplify merge.

Bumping libc files for unsupported architectures, to simplify merging.
A bunch of small fixes:
 * in libutil update
 * the macro in endian.h
 * some undefined types due to clear separation from host.
 * Fix a warning for cdbr.c

Some modification which were required for the new build system:
 * inclusion path for const.h in sconst, still hacky
 * Removed default malloc.c which conflicts on some occasions.

lib/libc/arch/vax/string/memcmp.S

@@ -1,4 +1,4 @@
-/*	$NetBSD: memcmp.S,v 1.3 2003/08/07 16:42:32 agc Exp $	*/
+/*	$NetBSD: memcmp.S,v 1.4 2011/01/25 02:38:15 matt Exp $	*/
 /*-
  * Copyright (c) 1990, 1993
  *	The Regents of the University of California.  All rights reserved.
@@ -32,6 +32,10 @@
 
 #include "DEFS.h"
 
+#ifdef LIBC_SCCS
+RCSID("$NetBSD: memcmp.S,v 1.4 2011/01/25 02:38:15 matt Exp $")
+#endif
+
 ENTRY(memcmp, 0)
 	movl	12(%ap),%r0
 	jeql	9f
@@ -63,3 +67,4 @@ ENTRY(memcmp, 0)
 	subl3	%r4,%r3,%r0
 9:
 	ret
+END(memcmp)