[coreboot-gerrit] Change in coreboot[master]: soc/intel/xeon_sp: Define all SMI_STS bits

[Furquan Shaikh (Code Review)]

Attention is currently required from: Maxim Polyakov, Jonathan Zhang, Christian Walter, Angel Pons, Arthur Heymans, Patrick Rudolph.
Furquan Shaikh has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/50915 )

Change subject: soc/intel/xeon_sp: Define all SMI_STS bits
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Patch Set 1: Code-Review+2