Change in coreboot[master]: drivers/intel/gma: Support IGD Opregion 2.1

[build bot (Jenkins) (Code Review)]

Attention is currently required from: Nico Huber, Krishna Prabhakaran, Maulik V Vaghela, Selma Bensaid, Angel Pons, Subrata Banik, Patrick Rudolph.
build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/52758 )

Change subject: drivers/intel/gma: Support IGD Opregion 2.1
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Patch Set 17:

(2 comments)

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

Robot Comment from checkpatch (run ID jenkins-coreboot-checkpatch-123679):
https://review.coreboot.org/c/coreboot/+/52758/comment/96726102_ad0fd74c 
PS17, Line 151: 					*	address of Raw VBT Data 
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Robot Comment from checkpatch (run ID jenkins-coreboot-checkpatch-123679):
https://review.coreboot.org/c/coreboot/+/52758/comment/952027da_f70b814c 
PS17, Line 152: 					*/		
trailing whitespace