vfio/mlx5: Enable the DMA link API

Remove intermediate scatter-gather table completely and
enable new DMA link API.

Tested-by: Jens Axboe <[email protected]>
Reviewed-by: Jason Gunthorpe <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Acked-by: Yishai Hadas <[email protected]>
Link: https://lore.kernel.org/r/f71638d50c9c79a462f2e0423501b1de77617656.1747747694.git.leon@kernel.org
Signed-off-by: Alex Williamson <[email protected]>

Author: rleon