Documentation: fix spelling mistake, EACCESS -> EACCES

Trivial fix to a spelling mistake of the error access name EACCESS,
rename to EACCES

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation/filesystems/spufs.txt

@@ -452,7 +452,7 @@ RETURN VALUE
 
 
 ERRORS
-       EACCESS
+       EACCES
               The  current  user does not have write access on the spufs mount
               point.