Change in coreboot[master]: soc/intel/{common,skl}: set ACPI_FADT_PLATFORM_CLOCK based on Kconfig

[Nico Huber (Code Review)]

Attention is currently required from:  Felix Singer, Furquan Shaikh, Mariusz Szafrański, Paul Menzel, Subrata Banik, Angel Pons, Michael Niewöhner, Patrick Rudolph, Lance Zhao, Tim Wawrzynczak, Suresh Bellampalli, Vanessa Eusebio, Michal Motyl.
Nico Huber has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/57934 )

Change subject: soc/intel/{common,skl}: set ACPI_FADT_PLATFORM_CLOCK based on Kconfig
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Patch Set 26: Code-Review+2

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/57934/comment/083e6a9e_296981d9 
PS21, Line 14:
> As of CB:58087 DNV-NS behaves the same as Xeon-SP

Done

Commit Message:

https://review.coreboot.org/c/coreboot/+/57934/comment/ee47abf6_6c87187f 
PS26, Line 17:  - Apollo Lake and Gemini Lake, which do not have a hardware PM timer
These two do not select PM_ACPI_TIMER_OPTIONAL hence are not affected anymore?