compiler.h: Fix typo

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 4a24354..923d093 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -236,7 +236,7 @@
 
 /*
  * Rather then using noinline to prevent stack consumption, use
- * noinline_for_stack instead.  For documentaiton reasons.
+ * noinline_for_stack instead.  For documentation reasons.
  */
 #define noinline_for_stack noinline