net/mlx5: Add ConnectX-8 device to ifc

In preparation for ConnectX-8 SWS support, add enum for the new device
type.

Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241204220931.254964-3-tariqt@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

include/linux/mlx5/mlx5_ifc.h

@@ -1590,6 +1590,7 @@ enum {
 	MLX5_STEERING_FORMAT_CONNECTX_5   = 0,
 	MLX5_STEERING_FORMAT_CONNECTX_6DX = 1,
 	MLX5_STEERING_FORMAT_CONNECTX_7   = 2,
+	MLX5_STEERING_FORMAT_CONNECTX_8   = 3,
 };
 
 struct mlx5_ifc_cmd_hca_cap_bits {