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

[Arthur Heymans (Code Review)]

Attention is currently required from: Christian Walter, Felix Held, Johnny Lin, Lean Sheng Tan, Nico Huber, Patrick Rudolph, Shuo Liu, Tim Chu.

Arthur Heymans 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 6:

(1 comment)

File src/soc/intel/xeon_sp/chip_common.c:

https://review.coreboot.org/c/coreboot/+/80091/comment/4f25955a_078d8660 :
PS6, Line 118: if (CONFIG(HAVE_IOAT_DOMAINS))
             : 					soc_create_ioat_domains(dn, dev->bus, ri);
I think it makes sense to have a function is_ioat_stack(). It looks like unused stacks could still end up in this path: e.g. if bus base and limit are both 0. Not related to this patch as the same behavior persists.