Change in coreboot[master]: amd/stoneyridge: Clarify SPD structure in chip.h

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Change subject: amd/stoneyridge: Clarify SPD structure in chip.h
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Patch Set 4:

Build Successful

https://qa.coreboot.org/job/coreboot-checkpatch/17865/ : SUCCESS

https://qa.coreboot.org/job/coreboot-gerrit/62900/ : SUCCESS