Change in coreboot[master]: soc/intel/intel: Add Alder Lake's GT device ID

[Paul Menzel (Code Review)]

Attention is currently required from: Furquan Shaikh, Rizwan Qureshi, Tim Wawrzynczak, Sridhar Siricilla, Patrick Rudolph.
Paul Menzel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/55256 )

Change subject: soc/intel/intel: Add Alder Lake's GT device ID
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Patch Set 4:

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/55256/comment/1a043765_78f1e216 
PS4, Line 9: Graphics
Nit: graphics

https://review.coreboot.org/c/coreboot/+/55256/comment/18b6428d_c8f77407 
PS4, Line 9: As per latest
           : document number: 641765, this ID got an update.
The latest version of document #641765 lists id 0x46a8.