We have config_defaults.h which are random configuration settings that
everyone gets by default. We also have config_cmd_default.h which is a
recommended list of defaults but boards have to opt into. Now we have
config_cmd_defaults.h which is a list of defaults that everyone gets
and has to actively opt out of.
For now, we populate it with the bootm command which previously was
unable to be disabled.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
