[PATCH] #ifdef cleanup for cris port

Another small #if/#ifdef cleanup, to make things safer for compiling with
-Wundef

Signed-off-by: <valdis.kletnieks@vt.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/cris/arch-v10/kernel/debugport.c

@@ -259,7 +259,7 @@ static struct console sercons = {
 void __init 
 init_etrax_debug(void)
 {
-#if CONFIG_ETRAX_DEBUG_PORT_NULL
+#ifdef CONFIG_ETRAX_DEBUG_PORT_NULL
 	return;
 #endif