[PATCH] s390: cleanup Kconfig

Sanitize some s390 Kconfig options.  We have ARCH_S390, ARCH_S390X,
ARCH_S390_31, 64BIT, S390_SUPPORT and COMPAT.  Replace these 6 options by
S390, 64BIT and COMPAT.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index d31a97c..ea88d06 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -30,7 +30,7 @@
 #include <asm/thread_info.h>
 #include <asm/page.h>
 
-#ifdef CONFIG_ARCH_S390X
+#ifdef CONFIG_64BIT
 #define ARCH_OFFSET	4
 #else
 #define ARCH_OFFSET	0
@@ -539,7 +539,7 @@
 	.word 0
 .endm
 
-#ifdef CONFIG_ARCH_S390X
+#ifdef CONFIG_64BIT
 #include "head64.S"
 #else
 #include "head31.S"