[M] Change in coreboot[main]: soc/intel/xeon_sp: Attach more stacks

[Lean Sheng Tan (Code Review)]

Attention is currently required from: Arthur Heymans, Christian Walter, Johnny Lin, Nico Huber, Patrick Rudolph, Paul Menzel, Shuo Liu, Tim Chu.

Lean Sheng Tan has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/80091?usp=email )

Change subject: soc/intel/xeon_sp: Attach more stacks
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Patch Set 7:

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/80091/comment/62579dd7_19027340 :
PS7, Line 7: Attach more stacks
Should this be more descriptive, like attach UBOX stacks?

https://review.coreboot.org/c/coreboot/+/80091/comment/e9b31039_76a30914 :
PS7, Line 10: attack
attach? Please dont attack the stacks :D