When getting meter flow_id bits, there's an issue that not handling
correctly if flow_id is 0.
This fix this issue that when flow_id is 0, treat it as 1 bit.
Fixes: 83306d6c46 ("net/mlx5: fix meter statistics")
Cc: stable@dpdk.org
Signed-off-by: Shun Hao <shunh@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
c751be1027