Change in coreboot[master]: soc/intel/cnl: add panel and backlight configuration code

[Nico Huber (Code Review)]

Nico Huber has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/48749 )

Change subject: soc/intel/cnl: add panel and backlight configuration code
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Patch Set 31: Code-Review+2

I find the additional brackets quite irritating but they seem
correct so let's get it in.

Generally I believe brackets are not a good way to make things
more human readable. If you want to make the execution order
clearly visible, you can use intermediate statements. Each on
one line.