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

[Sean Rhodes (Code Review)]

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

Sean Rhodes 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
......................................................................

Patch Set 4:

(1 comment)

File src/soc/intel/alderlake/acpi/pcie_pch_s.asl:

https://review.coreboot.org/c/coreboot/+/84620/comment/199706cf_0f07dbb6?usp... :
PS2, Line 278: 
             : 	OperationRegion (RPCS, PCI_Config, 0x4c, 4)
             : 	Field (RPCS, AnyAcc, NoLock, Preserve)
             : 	{
             : 		, 24,
             : 		RPPN, 8,	/* Root Port Number */
             : 	}
             : 
             : 	Method (_PRT)
             : 	{
             : 		Return (IRQM (RPPN))
             : 	}
             : }
             : 
             : Device (PEG1)
             : {
             : 	Name (_ADR, 0x00010000)
             : 
             : 	OperationRegion (RPCS, PCI_Config, 0x4c, 4)
             : 	Field (RPCS, AnyAcc, NoLock, Preserve)
             : 	{
             : 		, 24,
             : 		RPPN, 8,	/* Root Port Number */
             : 	}
             : 
             : 	Method (_PRT)
             : 	{
             : 		Return (IRQM (RPPN))
             : 	}
             : }
             : 
             : Device (PEG2)
             : {
             : 	Name (_ADR, 0x00010001)
             : 
             : 	OperationRegion (RPCS, PCI_Config, 0x4c, 4)
             : 	Field (RPCS, AnyAcc, NoLock, Preserve)
             : 	{
             : 		, 24,
             : 		RPPN, 8,	/* Root Port Number */
             : 	}
             : 
             : 	Method (_PRT)
             : 	{
             : 		Return (IRQM (RPPN))
             : 	}
> For PCH-S this is the only set of IRQs that was working: […]

Done