net/mlx5e: Add HW-GRO offload

This commit introduces HW-GRO offload by using the SHAMPO feature
- Add set feature handler for HW-GRO.

Signed-off-by: Ben Ben-Ishay <benishay@nvidia.com>
Signed-off-by: Khalid Manaa <khalidm@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>