[coreboot] FILO creating filo.conf

[Joseph Smith]

Starting a new thread on the FILO subject because it isn't really about
"BIOS" stuff anymore. What about this theory. FILO searches for a filo.conf
file on the first drive it finds in the first partition root directory. If
it does not find filo.conf it prompts the user for a configuration. At the
end, it prompts the user if they want to save it and writes a new filo.conf
file to the first drive it finds in the first partition root directory.
This way the next time you boot the configuration (filo.conf) is found, it
has a timeout for user intervention (to add/change the configuration, or
manually boot) and it boots that config.