[coreboot] Installing coreboot to listed motherboards

[Павел]

Hello. I've typed `git checkout <hash>` and `git submodule update 
--checkout` and git updated files and switch to this hash. But the 
config file did not appear in the directory. Is that how it should be? 
Do I have to download the configuration myself (from 
https://review.coreboot.org/plugins/gitiles/board-status/) and place it 
in the directory?