On some systems, python2 might still be the default python. Enforce
python3 by wrapping the mojo parser script in a python3 script. This
also has the benefit of not modifying mojo.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>