[S] Change in coreboot[main]: soc/intel/alderlake: Add IRQ mapping for PEG PCI-E ports

[Kapil Porwal (Code Review)]

Attention is currently required from: Dinesh Gehlot, Jayvik Desai, Michał Żygowski, Nick Vaccaro, Sean Rhodes, Subrata Banik.

Kapil Porwal has posted comments on this change by Sean Rhodes. ( https://review.coreboot.org/c/coreboot/+/84620?usp=email )

Change subject: soc/intel/alderlake: Add IRQ mapping for PEG PCI-E ports
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Patch Set 4:

(1 comment)

Patchset:

PS4: 
Could you please share the warning message? and also the output of

```
grep -E "00:00:0(1|6)." /proc/interrupts
lspci -vv -s 00:06. | grep -E "(^00:06|Interrupt)"
lspci -vv -s 00:01. | grep -E "(^00:01|Interrupt)"
```