[S] Change in coreboot[master]: soc/amd/common/block: Add missing cbfs_unmap().

[Karthik Ramasubramanian (Code Review)]

Attention is currently required from: Jason Glenesk, Jakub Czapiga, Matt DeVillier, Grzegorz Bernacki, Tim Van Patten, Fred Reitberger, Felix Held.

Karthik Ramasubramanian has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/74716 )

Change subject: soc/amd/common/block: Add missing cbfs_unmap().
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Patch Set 1:

(1 comment)

File src/soc/amd/common/block/graphics/graphics.c:

https://review.coreboot.org/c/coreboot/+/74716/comment/8932face_ac3fbf3c 
PS1, Line 173: cbfs_unmap(rom);
> There are scenarios where this call will be incorrect. […]

+1 to both Jakub and Konrad's comments. Also would recommend splitting this into 2 CLs so that they can go independently - 1 for ucode and 1 for graphics.

That way if there are other platforms that can benefit from this change, it will be easy to cherry-pick.