net/mlx5: correct ECE offset in query qp output

[ Upstream commit 3fc2a9e8 ]

ECE field should be after opt_param_mask in query qp output.

Fixes: 6b646a7e ("net/mlx5: Add ability to read and write ECE options")
Signed-off-by: Changcheng Liu <jerrliu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>