net/mlx5: Initialize bulk for single flow counters

net/mlx5: Initialize bulk for single flow counters

Ensure that flow counters allocated with mlx5_fc_single_alloc() have
bulk correctly initialized so they can safely be used in HWS rules.

Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1768210825-1598472-4-git-send-email-tariqt@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>