common.h: flow_key to tcp_key, sflow_key defn's
common.h: flow_key to tcp_key, sflow_key defn's

megahall/sdn_sensor,megahall/sdn_sensor,megahall/sdn_sensor,megahall/sdn_sensor,megahall/sdn_sensor,megahall/sdn_sensor,megahall/sdn_sensor,megahall/sdn_sensor