[S] Change in coreboot[master]: soc/intel/xeon_sp/spr: Drop devicetree setting X2apic

[Arthur Heymans (Code Review)]

Attention is currently required from: Patrick Rudolph, Jonathan Zhang, Johnny Lin, Christian Walter, Tim Chu.

Arthur Heymans has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/74185 )

Change subject: soc/intel/xeon_sp/spr: Drop devicetree setting X2apic
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Patch Set 1: Code-Review+2