Change in coreboot[master]: psp_verstage: initialize i2c in soc_init

[Furquan Shaikh (Code Review)]

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

Change subject: psp_verstage: initialize i2c in soc_init
......................................................................

Patch Set 2:

(1 comment)

File src/soc/amd/picasso/psp_verstage/chipset.c:

https://review.coreboot.org/c/coreboot/+/55136/comment/e5123b4d_8ca0c039 
PS2, Line 31: 		espi_setup();
Actually, zork is also doing the exact same work i.e.
```
»       enable_aoac_devices();                                                                                                                                                                             
»       setup_i2c();
```

in verstage_mainboard_init(). Do you think it makes sense to simply add this to psp_verstage/chipset.c?