net/mlx5: allow limiting the indexed pool maximum index

net/mlx5: allow limiting the indexed pool maximum index

Some ipool instances in the driver are used as ID\index allocator and
added other logic in order to work with limited index values.

Add a new configuration for ipool specify the maximum index value.
The ipool will ensure that no index bigger than the maximum value is
provided.

Use this configuration in ID allocator cases instead of the current
logics. This patch add the maximum ID configurable for the index pool.

Signed-off-by: Suanming Mou <suanmingm@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>