[S] Change in coreboot[master]: soc/amd/phoenix: Allow the amdfw.rom to be split into two parts

[Fred Reitberger (Code Review)]

Attention is currently required from: Bao Zheng, Jason Glenesk, Matt DeVillier, Zheng Bao, Karthik Ramasubramanian, Felix Held.

Fred Reitberger has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/72703 )

Change subject: soc/amd/phoenix: Allow the amdfw.rom to be split into two parts
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Patch Set 9: Code-Review+2

(1 comment)

Patchset:

PS6:
> That's a good idea - I'll look into moving the larger EC FW blob to an FMAP region in the upper 16M

I tested moving the Birman EC blob to the upper 16M but it did not work.  I will keep the EC blobs in the lower 16M for now.