net/mlx5: make FDB default rule optional

net/mlx5: make FDB default rule optional

There are RDMA-CORE versions which are not supported multi-table for
some Mellanox mlx5 devices.

Hence, the optimization added in commit [1] which forwards all the FDB
traffic to table 1 cannot be configured.

Make the above optimization optional:
Do not fail when either table 1 cannot be created or the jump rule
(all =>jump to table 1) is not configured successfully.
In this case, all the flows will be configured to table 0.

[1] commit b67b4ecbde22 ("net/mlx5: skip table zero to improve
insertion rate")

Cc: stable@dpdk.org
Signed-off-by: Matan Azrad <matan@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>