net/mlx5e: Fix error path for RQ alloc

Increase granularity of the error path to avoid unneeded free/release.
Fix the cleanup to be symmetric to the order of creation.

Fixes: 0ddf5432 ("xdp/mlx5: setup xdp_rxq_info")
Fixes: 422d4c40 ("net/mlx5e: RX, Split WQ objects for different RQ types")
Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>