Change in coreboot[master]: src/soc/intel/apollolake: include helpers.h in chip.h

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Change subject: src/soc/intel/apollolake: include helpers.h in chip.h
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Patch Set 1: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-checkpatch/19091/ : SUCCESS

https://qa.coreboot.org/job/coreboot-gerrit/64272/ : SUCCESS