[S] Change in coreboot[master]: mb/google/octopus/variants/phaser: Implement variant_memory_sku()

[Derek Huang (Code Review)]

Attention is currently required from: Jamie Chen, Stanley Wu, Marco Chen, Eric Lai.

Derek Huang has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/69925 )

Change subject: mb/google/octopus/variants/phaser: Implement variant_memory_sku()
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Patch Set 3:

(1 comment)

File src/mainboard/google/octopus/variants/phaser/memory.c:

https://review.coreboot.org/c/coreboot/+/69925/comment/98a1902d_c6783138 
PS3, Line 18: 		return (rt == 3) ? 1 : rt;  // If RAM ID = 3, return 1
> You'd better use board id for WA.

from the bug, it looks like there are some amount of boards having the issue, not sure if the board id is the same or different. If bard id is different, we better use board id