Nico Huber has posted comments on this change. ( https://review.coreboot.org/28950 )
Change subject: lenovo/x230: introduce FHD variant ......................................................................
Patch Set 3:
I am trying to compile after a `make distclean` and noticed if building with an existing .config it will error complaining that data.vbt cannot be found.
Reusing a *complete* .config for an older coreboot revision is always somehow fragile and discouraged. The best option you have currently is to use `make savedefconfig` (with a checkout of the older revision). It will create a `defconfig` file with only those settings that differ from the defaults. Then use this `defconfig` as your .config after switching to the new revision. Note, this `defconfig` is also stored inside the CBFS of your coreboot image.