As part of the config re-organization, put the scripts needed to create
the config files in the configs/ directory. At the top level create
symlinks for those scripts. This allows the kernel.spec file to find
the scripts it needs and work correctly.
No code changes.
The existing method of managing configuration files gets unweildy.
Changing individual lines in text files gets difficult without
manual organization. Switch to a method of configuration generation
that's inspired from the method used inside Red Hat. Each configuration
option gets its own file which are then combined to form the
configuration files. This makes confirming what's actually enabled much
easier.