[XS] Change in coreboot[main]: mb/google/nissa/var/nivviks: Update config for CNVi

[Felix Held (Code Review)]

Attention is currently required from: Dinesh Gehlot, Nick Vaccaro, Paul Menzel, Poornima Tom, V Sowmya.

Felix Held has posted comments on this change by Poornima Tom. ( https://review.coreboot.org/c/coreboot/+/83138?usp=email )

Change subject: mb/google/nissa/var/nivviks: Update config for CNVi
......................................................................

Patch Set 4:

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/83138/comment/d6333bc2_afaac5ab?usp... :
PS3, Line 9: Added
> Add

Done

https://review.coreboot.org/c/coreboot/+/83138/comment/7551ae6e_394a3109?usp... :
PS3, Line 9: Also, set 'add_acpi_dma_property' to
           : true.
           :
> Why?

see https://learn.microsoft.com/en-us/windows-hardware/drivers/pci/dsd-for-pcie-...
not sure if this needs more explanation in the commit message. maybe "set 'add_acpi_dma_property' to true to tell the OS to enforce DMA protection for this device"