[coreboot-gerrit] [XS] Change in coreboot[master]: [NOTFORMERGE] payloads: Set default to GRUB2 and add grub.cfg

[Stefan Reinauer (Code Review)]

Stefan Reinauer has abandoned this change. ( https://review.coreboot.org/c/coreboot/+/14013?usp=email )

Change subject: [NOTFORMERGE] payloads: Set default to GRUB2 and add grub.cfg
......................................................................

Abandoned