net/mlx5e: Store replay window in XFRM attributes

As a preparation for future extension of IPsec hardware object to allow
configuration of packet offload mode, extend the XFRM validator to check
replay window values.

Reviewed-by: Raed Salem <raeds@nvidia.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>