[Merge] ~philroche/livecd-rootfs/+git/livecd-rootfs:bugfix/add_apparmor515_focal into livecd-rootfs:ubuntu/focal

[Philip Roche]

@vorlon To ease your concern. Due to some partner defined time constraints CPC are carrying this patch in Focal and have seen no issues yet.
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https://code.launchpad.net/~philroche/livecd-rootfs/+git/livecd-rootfs/+merge/460323
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