Change in coreboot[master]: mb/google/dedede: add lalala variant

[Aaron Durbin (Code Review)]

Attention is currently required from: Martin Roth, Paul Menzel, Angel Pons.
Aaron Durbin has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/52031 )

Change subject: mb/google/dedede: add lalala variant
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Patch Set 2:

(2 comments)

File src/mainboard/google/dedede/variants/lalala/overridetree.cb:

https://review.coreboot.org/c/coreboot/+/52031/comment/5ac8acd2_80f355bb 
PS2, Line 11: TBD
> Hm?

This was lifted from magalor.

https://review.coreboot.org/c/coreboot/+/52031/comment/ed4977d0_6e5690d5 
PS2, Line 300: 		device pci 1c.7 on
> nit: I'd move this device up, so that the dev. […]

I was following magolor. I think we can reorder everything in a separate change.