missing: add missing header inclusions

These headers should work without any manual header inclusion.

src/basic/missing_keyctl.h

@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 #pragma once
 
+#include <inttypes.h>
 #include <linux/keyctl.h>
 
 #ifndef KEYCTL_JOIN_SESSION_KEYRING

src/basic/missing_syscall.h

@@ -20,6 +20,7 @@
 #include <asm/sgidefs.h>
 #endif
 
+#include "macro.h"
 #include "missing_keyctl.h"
 #include "missing_stat.h"
 #include "missing_syscall_def.h"