Sync SELinux/LSM code with upstream up to v5.18-rc5

Ondrej Mosnáčekrequested to merge
omos/centos-stream-9:centos-9.y-bz2050966-sync-5.18 into main

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2083580

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2050966

This MR backports minor fixes and cleanups in the SELinux and LSM subsystems from upstream to keep the code in sync.

All commits cherry-picked cleanly without conflicts.

Signed-off-by: Ondrej Mosnacek omosnace@redhat.com

Edited by Ondrej Mosnáček

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