Change in coreboot[master]: soc/intel/skylake: Set proper defaults in chipset devicetree

[Nico Huber (Code Review)]

Attention is currently required from:  Felix Singer, Patrick Rudolph.
Nico Huber has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/53925 )

Change subject: soc/intel/skylake: Set proper defaults in chipset devicetree
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Patch Set 1:

(1 comment)

File src/soc/intel/skylake/chipset.cb:

https://review.coreboot.org/c/coreboot/+/53925/comment/e1cb7b77_0730c4f6 
PS1, Line 63: n  end # P2SB
            : 		device pci 1f.2 alias pmc          on
> Thanks for clarification!

There's something about children, I guess a "hidden" bridge wouldn't be
followed down. But the reason to not use `hidden` for skylake/ is simple:
FSP is not as broken as for the newer platforms.