net/mlx5: allow multiple flow tables on same level

net/mlx5: allow multiple flow tables on same level

The driver devices support creation of multiple flow tables.
Jump action can be used in order to move the packet steering
to different flow table.
Table 0 is always the root table for packet steering.

Jumping between tables may cause endless loops in steering mechanism,
that's why each table has level attribute,
the driver sub-system may not allow jumping to table with
equal or lower level than the current table.

Currently, in the driver, the table ID and level are always identical.

Allow multiple flow table creation with the same level attribute.

This patch adds the table id in flow table data entry, while
allocates the flow table, if the table level is same but the
different table id, the new table will be allocated with new
table object id. It supports 4M multiple flow tables on the
same level.

Signed-off-by: Li Zhang <lizh@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>