net/mlx5e: Configure IPsec SA tables to support tunnel mode

Create SA flow steering tables both for RX and TX with tunnel reformat
property. This allows to add and delete extra headers needed for tunnel
mode.

Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>