Change in coreboot[master]: soc/amd: move fch_enable_hpet_decode call to common code

[Felix Held (Code Review)]

Felix Held has abandoned this change. ( https://review.coreboot.org/c/coreboot/+/50514 )

Change subject: soc/amd: move fch_enable_hpet_decode call to common code
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Abandoned

integrated this into the base patch of this, since i needed to do a rebase anyway