net/mlx5: DR, Replace local WIRE_PORT macro with the existing MLX5_VPORT_UPLINK

[ Upstream commit 7ae8ac9a ]

SW steering defines its own macro for uplink vport number.
Replace this macro with an already existing mlx5 macro.

Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Stable-dep-of: 5b2a2523 ("net/mlx5: DR, Can't go to uplink vport on RX rule")
Signed-off-by: Sasha Levin <sashal@kernel.org>