[S] Change in coreboot[master]: src/soc/intel: Document meaning of variables

[Subrata Banik (Code Review)]

Attention is currently required from: Tarun Tuli, Kapil Porwal, Paul Menzel, Maximilian Brune, Angel Pons.

Subrata Banik has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/71664 )

Change subject: src/soc/intel: Document meaning of variables
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Patch Set 2:

(1 comment)

File src/soc/intel/alderlake/chip.h:

https://review.coreboot.org/c/coreboot/+/71664/comment/03901ef3_1392691a 
PS2, Line 157:  // Display Data Channel
nit:

/* Display Data Channel */