types: s390: fix #ifdef reversal in <asm-s390/types.h>

The #ifdef for the integer types was reversed; the standard pattern in
these files are:

#ifndef __s390x__
/* 32-bit code */
#else
/* 64-bit code */
#endif

Stick with the original pattern, but make sure the 32-bit code
actually comes first!

Reported by Al Viro.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>

include/asm-s390/types.h

@@ -10,9 +10,9 @@
 #define _S390_TYPES_H
 
 #ifndef __s390x__
-# include <asm-generic/int-l64.h>
-#else
 # include <asm-generic/int-ll64.h>
+#else
+# include <asm-generic/int-l64.h>
 #endif
 
 #ifndef __ASSEMBLY__