Change in coreboot[master]: mainboards: Enable LPC and SPI lock down

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Change subject: mainboards: Enable LPC and SPI lock down
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Patch Set 2: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/58744/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/14119/ : SUCCESS