[XS] Change in coreboot[main]: mb/google/brya/var/nova: Remove TCSS XHCI setting

[Subrata Banik (Code Review)]

Attention is currently required from: Dinesh Gehlot, Eric Lai, Jayvik Desai, Kapil Porwal, Nick Vaccaro, Pranava Y N, Rishika Raj.

Subrata Banik has posted comments on this change by Pranava Y N. ( https://review.coreboot.org/c/coreboot/+/83845?usp=email )

Change subject: mb/google/brya/var/nova: Remove TCSS XHCI setting
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Patch Set 1:

(1 comment)

Commit Message:

https://review.coreboot.org/c/coreboot/+/83845/comment/4face9b5_70c84a27?usp... :
PS1, Line 8: 
           : This patch removes the TCSS XHCI and TCSS DMA related setting from the
           : devicetree to solve the genesys hub enumeration issue.
without these overrides TCSS devices remains on. Hence, you are basically keeping TCSS devices active to that genesys HUB over USB-C can be detected?

```
    	device ref tcss_xhci on end
    	device ref tcss_dma0 on end
    	device ref tcss_dma1 on end
```