Add a 16MiB reserved partition to arm64 recipes (#1078871)

Some UEFI and non-UEFI arm64 platforms require to reserve up to the first 16MiB of the disk for the U-Boot boot loader.

Proposed implementation:

• replace recipes-arm64 and recipes-arm64-efi symlinks with real directories
• add a 18MB unused partition at the beginning of the recipes

Closes: #1078871

added 1 commit

• 6fc12587 - build_recipes: Update to build arm64 and arm64-efi recipes

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added 5 commits

• 6fc12587...4299f6be - 3 commits from branch installer-team:master
• 5cf74265 - Add a 16MiB reserved partition to arm64 recipes
• 7458d1b3 - build_recipes: Update to build arm64 and arm64-efi recipes

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Rebase on MR !19 (merged)

added 3 commits

• fe6fbc6b - Adjust small_disk recipe limits for LVM
• deb50063 - Add a 16MiB reserved partition to arm64 recipes
• 00bd4460 - build_recipes: Update to build arm64 and arm64-efi recipes

Compare with previous version

I think, we don't loose anything with adding this 16MB free space on arm64, so I tend to merge this.

@diederik + @josch: do you have a capable machine handy, to test this? An installer image can be downloaded from https://salsa.debian.org/pham/partman-auto/-/jobs/6339706/artifacts/download.

resolved all threads

marked this merge request as ready

merged

mentioned in commit 77e071d6