Change in coreboot[master]: soc/intel/tigerlake: Invoke PCIe root port swapping

[Caveh Jalali (Code Review)]

Caveh Jalali has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/43850 )

Change subject: soc/intel/tigerlake: Invoke PCIe root port swapping
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Patch Set 1:

this is a respin of https://review.coreboot.org/c/coreboot/+/43835
applied to TGL.