Change in coreboot[master]: soc/amd/cezanne: Configure I2C Pad RX Select through devicetree

[Karthik Ramasubramanian (Code Review)]

Attention is currently required from: Jason Glenesk, Furquan Shaikh, Martin Roth, Marshall Dawson, Felix Held.
Karthik Ramasubramanian has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/55149 )

Change subject: soc/amd/cezanne: Configure I2C Pad RX Select through devicetree
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Patch Set 4:

(2 comments)

File src/mainboard/google/guybrush/Makefile.inc:

https://review.coreboot.org/c/coreboot/+/55149/comment/885acc1c_437ccac1 
PS1, Line 5:
> This will have to be done in verstage.c too for PSP on verstage.

Now that it is done in devicetree, we dont need the callback.

File src/mainboard/google/guybrush/i2c.c:

https://review.coreboot.org/c/coreboot/+/55149/comment/773fd29a_faab8527 
PS1, Line 8: mainboard_i2c_override
> +1

Done