Change in coreboot[master]: soc/intel/common: Add the Primary to Sideband bridge library

[EricR Lai (Code Review)]

Attention is currently required from: Wonkyu Kim, Subrata Banik, John Zhao, Tim Wawrzynczak, Angel Pons, Nick Vaccaro, Patrick Rudolph.
EricR Lai has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/61283 )

Change subject: soc/intel/common: Add the Primary to Sideband bridge library
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Patch Set 7: Code-Review+1

(1 comment)

Patchset:

PS7: 
Just question here. Before the FSP-S, p2sb is unhidden and FSP-S will hide that. So if before FSP-S, it hidden by coreboot. Will that causes some issue?