h8300: fix typo in header guard

Signed-off-by: NVegard Nossum <vegard.nossum@gmail.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

include/asm-h8300/cacheflush.h

@@ -3,7 +3,7 @@
  */
 
 #ifndef _ASM_H8300_CACHEFLUSH_H
-#define _AMS_H8300_CACHEFLUSH_H
+#define _ASM_H8300_CACHEFLUSH_H
 
 /*
  * Cache handling functions