Change in coreboot[master]: src/drivers/intel/fsp2_0: allow larger FSP 2.0 header

[Martin Roth (Code Review)]

Attention is currently required from: Furquan Shaikh, Michał Żygowski, Marshall Dawson, Subrata Banik, Nikolai Vyssotski, Andrey Petrov, Patrick Rudolph, Nathaniel L Desimone.
Martin Roth has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/56190 )

Change subject: src/drivers/intel/fsp2_0: allow larger FSP 2.0 header
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Patch Set 3:

(1 comment)

File src/drivers/intel/fsp2_0/include/fsp/info_header.h:

https://review.coreboot.org/c/coreboot/+/56190/comment/0c277a7b_b5a1ec02 
PS2, Line 13:  however, some FSP 2.0 variants have it as well.
> > The FSP header has a length field. […]

Nick, do we meet all the other requirements for FSP 2.2?  I thought AGESA FSP was only FSP 2.0 compliant?  If that's the case, I'm not entirely sure we want it to advertise that it's a 2.2 compliant FSP.

If other people think that's the best solution, I won't argue, but I think it might lead to other issues in the long run.