h8300: introduce asm/swab.h

Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

arch/h8300/include/asm/Kbuild

 include include/asm-generic/Kbuild.asm
+unifdef-y += swab.h

arch/h8300/include/asm/byteorder.h

 #ifndef _H8300_BYTEORDER_H
 #define _H8300_BYTEORDER_H
 
-#include <asm/types.h>
-
-#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__)
-#  define __BYTEORDER_HAS_U64__
-#  define __SWAB_64_THRU_32__
-#endif
-
+#include <asm/swab.h>
 #include <linux/byteorder/big_endian.h>
 
 #endif /* _H8300_BYTEORDER_H */

arch/h8300/include/asm/swab.h

+#ifndef _H8300_SWAB_H
+#define _H8300_SWAB_H
+
+#include <asm/types.h>
+
+#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__)
+#  define __SWAB_64_THRU_32__
+#endif
+
+#endif /* _H8300_SWAB_H */