[coreboot-gerrit] Change in coreboot[master]: [WIP]mainboard/lenovo: do initial commit for t540p

[Peter Lemenkov (Code Review)]

Peter Lemenkov has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/38204 )

Change subject: [WIP]mainboard/lenovo: do initial commit for t540p
......................................................................

Patch Set 2:

I've added few more patches to align with the rest of the boards.

https://github.com/Jikstra/coreboot/pull/1