Change in coreboot[master]: soc/intel/alderlake: Select INTEL_GMA_OPREGION_2_1

[Meera Ravindranath (Code Review)]

Attention is currently required from: Furquan Shaikh, Maulik V Vaghela, Paul Menzel, Tim Wawrzynczak, Subrata Banik, Angel Pons, Patrick Rudolph.
Meera Ravindranath has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/56156 )

Change subject: soc/intel/alderlake: Select INTEL_GMA_OPREGION_2_1
......................................................................

Patch Set 3:

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/56156/comment/d92c005a_940104a1 
PS2, Line 9: Alderlake supports IGD Opregion version 2.1
> Please add a dot/period at the end of sentences.

Done

https://review.coreboot.org/c/coreboot/+/56156/comment/df1d3404_f7fd0ccd 
PS2, Line 9: Alderlake
> Nit: Alder Lake

Done