Expose definition for 1600Gbps link mode

Single patch to expose new link mode for 1600Gbps, utilizing 8 lanes at
200Gbps per lane.

Signed-off-by: Leon Romanovsky <[e-mail]>

* mlx5-next:
net/mlx5: Expose definition for 1600Gbps link mode

include/linux/mlx5/port.h

···
 	MLX5E_400GAUI_2_400GBASE_CR2_KR2	= 17,
 	MLX5E_800GAUI_8_800GBASE_CR8_KR8	= 19,
 	MLX5E_800GAUI_4_800GBASE_CR4_KR4	= 20,
+	MLX5E_1600TAUI_8_1600TBASE_CR8_KR8	= 23,
 	MLX5E_EXT_LINK_MODES_NUMBER,
 };