[M] Change in coreboot[main]: drivers/intel/fsp2_0: Simplify FSP global reset definition

[Jérémy Compostella (Code Review)]

Attention is currently required from: Andrey Petrov, Dinesh Gehlot, Eran Mitrani, Jakub Czapiga, Jayvik Desai, Kapil Porwal, Lean Sheng Tan, Nick Vaccaro, Paul Menzel, Pranava Y N, Rishika Raj, Ronak Kanabar, Sean Rhodes, Subrata Banik, Tarun, Werner Zeh.

Jérémy Compostella has posted comments on this change by Jérémy Compostella. ( https://review.coreboot.org/c/coreboot/+/84356?usp=email )

Change subject: drivers/intel/fsp2_0: Simplify FSP global reset definition
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Patch Set 12:

(1 comment)

File src/soc/intel/common/fsp_reset.c:

https://review.coreboot.org/c/coreboot/+/84356/comment/89d6fa50_e0a74b6d?usp... :
PS11, Line 35: CONFIG_FSP_STATUS_GLOBAL_RESET
Typically in [758995_Elkhart_Lake_FSP_Integration_Guide_Rev1.0.pdf](https://cdrdv2-public.intel.com/758995/758995_Elkhart_Lake_FSP_Integration_G...),
> As per FSP External Architecture Specification version 2.0, any reset required in the FSP flow will be reported as return status FSP_STATUS_RESET_REQUIREDx by the API. It is the bootloader’s responsibility to reset the system according to the reset type requested.

To me this is about assigning the global reset to the right `FSP_STATUS_RESET_REQUIRED_x`. On ELK this is  `FSP_STATUS_RESET_REQUIRED_3`.