net/mlx5e: Always start IPsec sequence number from 1

net/mlx5e: Always start IPsec sequence number from 1

According to RFC4303, section "3.3.3. Sequence Number Generation",
the first packet sent using a given SA will contain a sequence
number of 1.

This is applicable to both ESN and non-ESN mode, which was not covered
in commit mentioned in Fixes line.

Fixes: 3d42c8cc67a8 ("net/mlx5e: Ensure that IPsec sequence packet number starts from 1")
Signed-off-by: Leon Romanovsky <[email protected]>
Reviewed-by: Jacob Keller <[email protected]>
Signed-off-by: Tariq Toukan <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>