[coreboot] Incorrect Intel GPU IDs for Comet Lake CPUs

[Maxim Polyakov]

It seems that some of the graphics device IDs for intel Comet Lake CPUs are
incorrect. According to the supported GPU list [1], fixed them in
https://review.coreboot.org/c/coreboot/+/83708. If you support a
motherboard with -S or -H processors, then please take a look at this
patch. And it would be great if someone from Intel checked out these
changes.

Thx

[1]
https://web.archive.org/web/20240731152818/https://dgpu-docs.intel.com/devic...

// Regards,
// Max