Change in coreboot[master]: mainboard/hp: Add HP Elitebook 8460p

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Change subject: mainboard/hp: Add HP Elitebook 8460p
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Patch Set 8: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/58061/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/13494/ : SUCCESS