Change in coreboot[master]: soc/intel/apollolake: Use PCR write to disable HECI1

[Lean Sheng Tan (Code Review)]

Attention is currently required from: Subrata Banik, Maulik V Vaghela, Tim Wawrzynczak, Angel Pons, Sridhar Siricilla, Werner Zeh, Andrey Petrov, Patrick Rudolph, EricR Lai.
Lean Sheng Tan has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/61444 )

Change subject: soc/intel/apollolake: Use PCR write to disable HECI1
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Patch Set 9: Code-Review+2