Change in coreboot[master]: mainboards/hp: Add HP Elitebook 2760p

[build bot (Jenkins) (Code Review)]

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/18241 )

Change subject: mainboards/hp: Add HP Elitebook 2760p
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Patch Set 21:

Build Unstable

https://qa.coreboot.org/job/coreboot-gerrit/56539/ : UNSTABLE

https://qa.coreboot.org/job/coreboot-checkpatch/12117/ : SUCCESS