net/mlx5e: Enable traps according to link state

net/mlx5e: Enable traps according to link state

Avoid trapping packets when the interface is down, and revive them when
interface is back up. Add API to mlx5 core retrieving the action by trap
id. Use it to apply traps when interface is up, and disable then when
interface is down.

Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>