Maximized boards being supported here only. I do not have a board to test. But these have been tested as working by another user (see linuxboot#1057 (comment)).

Add support for t430 dgpu-versions

patches vbios script dependencies, error reporting, sudo calls
updates board and coreboot configs to match new directory structure of master
changes build dependency to linux-x230-maximized

cleaned up formatting and added instructions for clarity
removed instruction to call script with sudo since sudo calls have been added to script

make executable