[coreboot-gerrit] Change in coreboot[master]: hatch: automate creating a new variant in coreboot

[Paul Fagerburg (Code Review)]

Paul Fagerburg has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/35239 )

Change subject: hatch: automate creating a new variant in coreboot
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Patch Set 12:

Made some style changes that were flagged in other reviews where this script and that script shared some common structure.