Change in coreboot[master]: mb/google/guybrush: initialize i2c in psp_verstage

[Kangheui Won (Code Review)]

Attention is currently required from: Raul Rangel, Furquan Shaikh, Felix Held.
Kangheui Won has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/55136 )

Change subject: mb/google/guybrush: initialize i2c in psp_verstage
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Patch Set 1:

(1 comment)

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

https://review.coreboot.org/c/coreboot/+/55136/comment/bf1d3eb3_adf8eac5 
PS1, Line 28: if (CONFIG(VBOOT_STARTS_BEFORE_BOOTBLOCK)) {
            : 		enable_aoac_devices();
            : 		printk(BIOS_DEBUG, "Setting up i2c\n");
            : 		i2c_soc_early_init();
            : 		printk(BIOS_DEBUG, "i2c setup\n");
            : 	}
> I think this should be done as part of `verstage_soc_init()` and not mainboard init. […]

I thought i2c is only used for the communication with GSC so the code is specific to guybrush. For other stages it makes sense to initialize all peripherals but do we need to do so in psp_verstage?