RDMA/mlx4: Annotate boolean arguments as bool and not int

Information provided by qp_has_rq() and used latter is boolean, so update
callers to proper type.

Link: https://lore.kernel.org/r/20190704130936.8705-3-leon@kernel.org


Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>