include/nuttx/fs: add missing 'CODE'

Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>

include/nuttx/fs/fs.h

@@ -220,7 +220,7 @@ struct file_operations
   CODE int     (*ioctl)(FAR struct file *filep, int cmd, unsigned long arg);
   CODE int     (*mmap)(FAR struct file *filep,
                        FAR struct mm_map_entry_s *map);
-  int     (*truncate)(FAR struct file *filep, off_t length);
+  CODE int     (*truncate)(FAR struct file *filep, off_t length);
 
   /* The two structures need not be common after this point */
 
@@ -300,7 +300,7 @@ struct mountpt_operations
    */
 
   CODE int     (*open)(FAR struct file *filep, FAR const char *relpath,
-            int oflags, mode_t mode);
+                       int oflags, mode_t mode);
 
   /* The following methods must be identical in signature and position
    * because the struct file_operations and struct mountpt_operations are