[coreboot-gerrit] Change in coreboot[master]: use initial_lapicid() instead of opencoding it

[Angel Pons (Code Review)]

Attention is currently required from: Arthur Heymans, Jason Glenesk, Raul Rangel, Anjaneya "Reddy" Chagam, Marshall Dawson, Jonathan Zhang, Johnny Lin, Paul Menzel, Morgan Jang, Patrick Rudolph, Felix Held.
Angel Pons has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/55063 )

Change subject: use initial_lapicid() instead of opencoding it
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Patch Set 2:

(1 comment)

File src/soc/amd/picasso/mca.c:

https://review.coreboot.org/c/coreboot/+/55063/comment/c3fa3167_b41c4ea0 
PS2, Line 167: int
> unsigned?

See my comments on earlier patchsets. If this gets retyped, the print statements should be updated too.