[coreboot-gerrit] Change in coreboot[master]: soc/intel: Fix regression with hidden PCI devices

[Nico Huber (Code Review)]

Nico Huber has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/34285 )

Change subject: soc/intel: Fix regression with hidden PCI devices
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Patch Set 5:
> On SKL, KBL: Config write requests work on only one register, 32 bits, to unhide it.

Sorry, I remembered this wrong. All config writes should work.
> Unhiding only works as long as the P2SB uses BOOT_SAI.

I'm not sure about this any more, either. But at least there
is something related that makes it impossible to unhide.