Change in coreboot[master]: amd/family15h: Add defines for boost and P-state

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Change subject: amd/family15h: Add defines for boost and P-state
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Patch Set 8:

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/56327/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/11920/ : SUCCESS