net/mlx5e: Ignore IPsec replay window values on sender side

XFRM stack doesn't prevent from users to configure replay window
in TX side and strongswan sets replay_window to be 1. It causes
to failures in validation logic when trying to offload the SA.

Replay window is not relevant in TX side and should be ignored.

Fixes: cded6d80 ("net/mlx5e: Store replay window in XFRM attributes")
Signed-off-by: Aya Levin <ayal@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>