Change in coreboot[master]: drivers/gfx/nvidia: Add basic Nvidia GPU driver

[Tim Wawrzynczak (Code Review)]

Attention is currently required from: Tim Crawford, Jeremy Soller, Nick Vaccaro.
Tim Wawrzynczak has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/62381 )

Change subject: drivers/gfx/nvidia: Add basic Nvidia GPU driver
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Patch Set 2:

(1 comment)

File src/drivers/gfx/nvidia/gpu.asl:

https://review.coreboot.org/c/coreboot/+/62381/comment/7da68bff_69822a4d 
PS2, Line 34: 	Name (G6XS, 0)
> This value does not appear to actually be used. […]

Yes, I was planning to add this all in stages, but it appears from your fork that you are further along than I am 😊 (we are using GC6 v3 as well, but the one big difference on our design is all of the GPU power sequencing is done by the PCH, thus in ACPI; see CB:62384 for where it is powered on just during boot for enumeration)