[coreboot-gerrit] Change in coreboot[master]: soc/intel/skylake: detect if IGD is present

[Nico Huber (Code Review)]

Attention is currently required from: Tim Wawrzynczak, Angel Pons, Michael Niewöhner, Alexander Couzens, Patrick Rudolph.
Nico Huber has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/51332 )

Change subject: soc/intel/skylake: detect if IGD is present
......................................................................

Patch Set 3:

(1 comment)

File src/soc/intel/skylake/systemagent.c:

https://review.coreboot.org/c/coreboot/+/51332/comment/f1fe76ff_44a4349a 
PS3, Line 49: pci_read_config16(igd_dev, PCI_VENDOR_ID) == 0x8086)
            :
> I don't remember having such an issue

Right, at this point pcidev_path_on_root() should only return devices that
were present at enumeration (or handled as hidden device).