Change in coreboot[master]: [WIP]Allow to build romstage sources inside the bootblock

[Paul Menzel (Code Review)]

Attention is currently required from: Arthur Heymans, Martin Roth, ron minnich, Stefan Reinauer, Angel Pons, Keith Hui, Patrick Rudolph, Ron Minnich, Felix Held.
Paul Menzel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/55068 )

Change subject: [WIP]Allow to build romstage sources inside the bootblock
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Patch Set 4:

(1 comment)

Patchset:

PS4:
> I still have to build it with seabios with a ps/2 init patch for boot testing - I do have issues with a real Model M on ps/2 port.

If you ever mentioned it, I forgot. Is there a bug report with your patch? (Let’s move that discussion out of this change-set.)