[S] Change in coreboot[main]: soc/amd/*/romstage: factor out FSP-M call

[Martin Roth (Code Review)]

Attention is currently required from: Felix Held, Fred Reitberger, Jason Glenesk, Matt DeVillier.

Martin Roth has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/80002?usp=email )

Change subject: soc/amd/*/romstage: factor out FSP-M call
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Patch Set 2: Code-Review+2

(2 comments)

Patchset:

PS2: 
I'm marking it as +2, because it's really fine, I'm just not crazy about the name. Feel free to ignore my comment if I'm being silly.

File src/soc/amd/cezanne/romstage.c:

https://review.coreboot.org/c/coreboot/+/80002/comment/a904405b_75b71d82 :
PS2, Line 20: call
Just a nit, but I'm not crazy about the name. I'm channeling my inner Paul here. 
Maybe something like one of these:
- run_fsp_m()
- fsp_m_init()
- fsp_m()
- early_silicon_init() - this could be preceded by "first_silicon_init()" and we could have mid_ late_ final_ post_enum_ etc_ come later.