[S] Change in coreboot[main]: soc/intel/xeon_sp: Rewrite acpi_fill_dmar

[Lean Sheng Tan (Code Review)]

Attention is currently required from: Arthur Heymans, Christian Walter, Johnny Lin, Shuo Liu, Tim Chu.

Lean Sheng Tan has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/81228?usp=email )

Change subject: soc/intel/xeon_sp: Rewrite acpi_fill_dmar
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Patch Set 1:

(1 comment)

Patchset:

PS1: 
Will get this merged again before 24 hours. is a reland of the reverted patch:
https://review.coreboot.org/c/coreboot/+/81200
The previous reverted patch was just merged out of chain