[coreboot] SuperIO updates

[Myles Watson]

This patch updates the other supported SuperIOs to use the PNP dts changes.

It should not break anything that was working, but I didn't try to fix
SuperIOs
that were not compiling when I started.

Compile tested on
1. amd/dbm690t for ite/it8712f
2. amp/tinygx for ite/it8716f

I'd already updated fintek/f71805 before I realized jetway doesn't compile.

Signed-off-by: Myles Watson

Thanks,
Myles