[S] Change in coreboot[master]: mb/google/myst: Enable internal graphics

[Karthik Ramasubramanian (Code Review)]

Attention is currently required from: Raul Rangel, Jon Murphy, Paul Menzel, Mark Hasemeyer.

Karthik Ramasubramanian has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/74104 )

Change subject: mb/google/myst: Enable internal graphics
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Patch Set 25:

(1 comment)

File src/mainboard/google/myst/variants/baseboard/devicetree.cb:

https://review.coreboot.org/c/coreboot/+/74104/comment/8fd0a256_b3859d6f 
PS25, Line 11: device ref gpp_bridge_a on  # Internal GPP Bridge 0 to Bus A
             : 		device ref gfx on end # Internal GPU (GFX)
             : 	end
Please move this inside domain 0 in this CL itself.