Change in coreboot[master]: drivers/intel/gma: Restructure Opregion version info code

[Meera Ravindranath (Code Review)]

Attention is currently required from: Furquan Shaikh, Maulik V Vaghela, Tim Wawrzynczak, Subrata Banik, Angel Pons, Patrick Rudolph.
Meera Ravindranath has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/56168 )

Change subject: drivers/intel/gma: Restructure Opregion version info code
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Patch Set 6:

(3 comments)

File src/drivers/intel/gma/opregion.h:

https://review.coreboot.org/c/coreboot/+/56168/comment/e4a69cae_96bc38e3 
PS5, Line 21:
> one tab less?

Done

https://review.coreboot.org/c/coreboot/+/56168/comment/72b429da_34d82009 
PS5, Line 25: __packed
> wondering if we need __packed here ? isn't it already 32-bit variable ?

Done

File src/drivers/intel/gma/opregion.c:

https://review.coreboot.org/c/coreboot/+/56168/comment/307e4ce8_ce9f3890 
PS5, Line 262: 0
> how would you take care of INTEL_GMA_OPREGION_2_1 and INTEL_GMA_OPREGION_2_0, can we use those Kconf […]

Accomodated in the next CL Subrata. Updating the minor version based on the Kconfig check.