Merge pull request #20907 from keszybz/licensing-cleanup

Licensing cleanup

src/basic/missing_mount.h

@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 #pragma once
 
 #include <sys/mount.h>

src/basic/missing_securebits.h

@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 #pragma once
 
 #include <linux/securebits.h>