[M] Change in coreboot[main]: mb/google/nissa: Create meliks variant

[SH Kim (Code Review)]

Attention is currently required from: Dinesh Gehlot, Eric Lai, Jayvik Desai, Kapil Porwal, Nick Vaccaro, Subrata Banik.

SH Kim has posted comments on this change by SH Kim. ( https://review.coreboot.org/c/coreboot/+/86373?usp=email )

Change subject: mb/google/nissa: Create meliks variant
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Patch Set 6:

(1 comment)

Patchset:

PS6:
> > It seems the VBT is requried for the coreboot build, where builder get the VBT file? […]

Jenkins was able to build on Patchset 2, but nothing special different on Patchset 6 from Patchset 2.
```
    select DRIVERS_INTEL_MIPI_CAMERA
    select DRIVERS_I2C_DA7219
    select INTEL_GMA_HAVE_VBT
    select SOC_INTEL_TWINLAKE
```
```
    default 0x0 if BOARD_GOOGLE_MELIKS
```
```
    default 13 if BOARD_GOOGLE_MELIKS
```