Change in coreboot[master]: soc/intel/*,mb/*: do not include boilerplate GFX0 device by default

[Michael Niewöhner (Code Review)]

Michael Niewöhner has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/48773 )

Change subject: soc/intel/*,mb/*: do not include boilerplate GFX0 device by default
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Patch Set 13: -Code-Review
> Patch Set 13:
> > Patch Set 12:
> > > Patch Set 5: Code-Review-1
> > >
> > > with CB:48862 we can include gma.asl now instead and drop the boilerplate version
> >
> > Is this patch necessary for making libgfxinit on soc/intel/cannonlake working? If not, can you rebase this one on mb/clevo/l140cu so that these come first?
>
> no, not required, I rebased this

ouch. I was wrong. This *is* required, since two GFX0 (one from southbridge.asl and one from gma.asl) will conflict... see buildbot fail in the l140cu patch