By default, IFCOUNTERS are maintained by IFLIB, which lacks visibility into
packets actually transmitted or received on the wire. This causes network
monitoring tools like nstat to report inaccurate traffic statistics.
This patch fixes the issue by populating IFCOUNTERS from the NIC-provided hardware
statistics (HWSTATS). With this change, tools such as nstat now report correct packet
counters, aligning observed traffic with real hardware activity.