Add a few comments at the top of the file explaining what it's for, and
a comment pointing out that you need to increment the cache version when
changing any code that changes the output.
(Bitbake rev: c1780bc1872bb35bc28c76eff9110717f02d9db2)
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>