[M] Change in coreboot[main]: fatcat: Add 64M fmd file

[Subrata Banik (Code Review)]

Attention is currently required from: Jayvik Desai, Kapil Porwal, Pranava Y N, Tongtong Pan.

Subrata Banik has posted comments on this change by Tongtong Pan. ( https://review.coreboot.org/c/coreboot/+/86612?usp=email )

Change subject: fatcat: Add 64M fmd file
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Patch Set 1: Code-Review-2

(1 comment)

Patchset:

PS1: 
As mentioned earlier, you may not need 64MB flash layout as Intel SoC is not 64MB memory mapped. please use Kconfig that would allow you to create a 64MB image where the upper bank is padded. example: https://review.coreboot.org/c/coreboot/+/66828