[fs][fat] add header guard to new iterator code header
* license that can be found in the LICENSE file or at
* https://opensource.org/licenses/MIT
*/
+#pragma once
+#include <lib/bio.h>
#include <lk/cpp.h>
-#include <lk/err.h>
-#include <lk/trace.h>
-#include <endian.h>
+#include <lk/debug.h>
#include <stdint.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
+#include <sys/types.h>
#include "fat_fs.h"
-#include "fat_priv.h"
// Local object used to track the state of walking through a file or directory
// one sector at a time using the block cache. Holds a reference to the open
