[coreboot] i82801gx: SMI from "GPE0_STS: USB1"

[Константин Аладышев]

>I droped GPE0_EN initialization from coreboot and now it works. I think OS
>gets GPE0_EN information from _PRW objects in ACPI tables.
>So... Is there any reason to setup GPE0_EN register in coreboot?

Little addition to my last message:
Not even drop GPE0_EN initialization from coreboot, but add GPE0_EN reset to 
0x00000000. Cause coreboot gets it initializated from OS.
Should it be done this way, or it is terrible hack?