Change in coreboot[master]: soc/intel/common: OEM variables support for DPTF

[Sumeet R Pawnikar (Code Review)]

Attention is currently required from: Furquan Shaikh, Tim Wawrzynczak, Patrick Rudolph, Aaron Durbin, Karthik Ramasubramanian.
Sumeet R Pawnikar has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/54098 )

Change subject: soc/intel/common: OEM variables support for DPTF
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Patch Set 5:

(1 comment)

File src/soc/intel/common/block/acpi/acpi/globalnvs.asl:

https://review.coreboot.org/c/coreboot/+/54098/comment/7035abf7_9dc68738 
PS5, Line 28: 	ODV0,	8,	// Oem Design Variable 0
            : 	ODV1,	8,	// Oem Design Variable 1
            : 	ODV2,	8,	// Oem Design Variable 2
            : 	ODV3,	8,	// Oem Design Variable 3
            : 	ODV4,	8,	// Oem Design Variable 4
            : 	ODV5,	8,	// Oem Design Variable 5
> Why do these have to live in GNVS?

Based on an event these values might get updated and to transfer these values, we need to store these values in gnvs to be supplied until someone can query and read them.