[M] Change in coreboot[master]: soc/amd/cezanne: Factor out common GPP clk req code

[Felix Held (Code Review)]

Attention is currently required from: Robert Zieba, Jason Glenesk, Raul Rangel, Matt DeVillier, Fred Reitberger.

Felix Held has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/68138 )

Change subject: soc/amd/cezanne: Factor out common GPP clk req code
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Patch Set 8:

(1 comment)

File src/soc/amd/common/block/pci/Kconfig:

https://review.coreboot.org/c/coreboot/+/68138/comment/baad8e9c_bfd41eb4 
PS6, Line 16: 	depends on SOC_AMD_COMMON_BLOCK_PCI
> Unfortunately not as is. Prior to Cezanne platform_descriptors. […]

maybe the pcie gpp clock fixup code can/should also be used on picasso, but that's something for some future cleanup patch. right now selecting this from each socs config should be the way to go