[Merge] ~ikapelyukhin/livecd-rootfs/+git/livecd-rootfs:focal-backport-arm64-secureboot into livecd-rootfs:ubuntu/focal

[Ivan Kapelyukhin]

The proposal to merge ~ikapelyukhin/livecd-rootfs/+git/livecd-rootfs:focal-backport-arm64-secureboot into livecd-rootfs:ubuntu/focal has been updated.

Description changed to:

Tested by building a GCE image and booting with secureboot enabled.

For more details, see:
https://code.launchpad.net/~ikapelyukhin/livecd-rootfs/+git/livecd-rootfs/+merge/425941
-- 
Your team Ubuntu Core Development Team is requested to review the proposed merge of ~ikapelyukhin/livecd-rootfs/+git/livecd-rootfs:focal-backport-arm64-secureboot into livecd-rootfs:ubuntu/focal.