bsd: Commit original BSD random files in their unmodified state

Glauber says:
I would advise commiting the original files from BSD in their unmodified state
(don't include them in the build), and in a different patch put on the changes
that OSv needs.
It has proven useful more than once for me in conjunction with git blame to
determine whether a snippet was already in the BSD code or was ours.

Signed-off-by: Raphael S. Carvalho <raphaelsc@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>