[Merge] ~gjolly/livecd-rootfs:backport/focal/arm_grub into livecd-rootfs:ubuntu/focal

[Gauthier Jolly]

The proposal to merge ~gjolly/livecd-rootfs:backport/focal/arm_grub into livecd-rootfs:ubuntu/focal has been updated.

Commit message changed to:

999-cpc-fixes: enable more code on grub2 armhf & arm64

For more details, see:
https://code.launchpad.net/~gjolly/livecd-rootfs/+git/livecd-rootfs/+merge/405737
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Your team Ubuntu Core Development Team is requested to review the proposed merge of ~gjolly/livecd-rootfs:backport/focal/arm_grub into livecd-rootfs:ubuntu/focal.