net/mlx5e: IPoIB, Add support for NDR speed

Add NDR IB PTYS coding and NDR speed 100GHz.

Fixes: 235b6ac3

 ("RDMA/ipoib: Add 50Gb and 100Gb link speeds to ethtool")
Signed-off-by: Meir Lichtinger <meirl@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>