[S] Change in coreboot[main]: drivers/intel/fsp2_0/ppi: Fix FSP PPI callback calling convention

[Jérémy Compostella (Code Review)]

Jérémy Compostella has abandoned this change. ( https://review.coreboot.org/c/coreboot/+/80574?usp=email )

Change subject: drivers/intel/fsp2_0/ppi: Fix FSP PPI callback calling convention
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Abandoned

This patch has been squashed into https://review.coreboot.org/c/coreboot/+/80277 as a result of https://review.coreboot.org/c/coreboot/+/80574/comment/3833c31a_173a00c8/ discussion.