[XS] Change in coreboot[main]: soc/intel/xeon_sp/spr: Drop microcode constrains

[Arthur Heymans (Code Review)]

Attention is currently required from: Christian Walter, Johnny Lin, Jonathan Zhang, Lean Sheng Tan, Patrick Rudolph, Shuo Liu, Tim Chu.

Arthur Heymans has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/81635?usp=email )

Change subject: soc/intel/xeon_sp/spr: Drop microcode constrains
......................................................................

Patch Set 1: Code-Review+2