Add support for "make image=rogue"

Add needed files for "make image=rogue" to work. After this, runnning
script/run.py runs rogue in a fraction of a second ;-)

Thoughts for the future:

 1. There's too much beaurocracy for adding a new module. The files you see
    here are just the story - I also need to commit changes to config.json
    and images/rogue in the main OSv repository.

 2. It should have been enough to add rogue in this repository - I shouldn't
    have had to add the aforementioned files in the main repository.

Signed-off-by: Nadav Har'El <nyh@cloudius-systems.com>