[MAC80211][hnat][Update conntrack of per flow accounting data lost issue]
Fix conntrack of per flow accounting data lost issue.
When the framework detects FIN packets, it will set up the
NF_FLOW_TEARDOWN flag to the flow. Then GC thread intention
clears the hardware entry and releases the software flow immedately.
Therefore, the framework has to issue a FLOW_CLS_STATS command which
updates residue MIB data to the conntrack.
If without this patch, the conntrack might lost some MIB data in the
1 file changed