Change in coreboot[master]: soc/amd/cezanne: Refactor ESPI Setup

[Karthik Ramasubramanian (Code Review)]

Attention is currently required from: Jason Glenesk, Raul Rangel, Marshall Dawson, Felix Held.
Karthik Ramasubramanian has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/58114 )

Change subject: soc/amd/cezanne: Refactor ESPI Setup
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Patch Set 1:

(1 comment)

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

https://review.coreboot.org/c/coreboot/+/58114/comment/8b5082f6_52e002bd 
PS1, Line 47: lpc_early_init
> One thing I've always wondered is why can't we call configure_espi here?

Post Codes need to be routed before bootblock hit this point. Hence we are setting up ESPI outside this.