[XS] Change in coreboot[master]: mb/google/brya: Add support for variant_memcfg_init()

[David Wu (Code Review)]

Attention is currently required from: Bob Moragues, Eric Lai, Kane Chen, Nick Vaccaro, Tarun Tuli.

David Wu has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/75990?usp=email )

Change subject: mb/google/brya: Add support for variant_memcfg_init()
......................................................................

Patch Set 1:

(1 comment)

This change is ready for review.

Patchset:

PS1:
> That's right. Thanks.

Sorry, I misunderstood. According to your suggestion (the same as CL:4623327), it will copy the duplicated data.
The variant_memcfg_init() can help variant only update CsPiStartHighinEct to 1 if determine the DUT is using the hynix part.