[Realtek sdk-4.4.1b]RTL8198D增加ConeNat支持设置NatType操作(FullCone/Symmetric/Restricted/Port Restricted )

--- a/rtl819x/linux-4.4.x/drivers/net/ethernet/realtek/rtl86900/FleetConntrackDriver/include/rtk_fc_helper.h
+++ b/rtl819x/linux-4.4.x/drivers/net/ethernet/realtek/rtl86900/FleetConntrackDriver/include/rtk_fc_helper.h
@@ -377,6 +377,7 @@ typedef struct rtk_fc_ps_api_s
        int (*ct_protonum_get)(struct nf_conn *ct, unsigned char *protonum);
        int (*ct_session_alive_check)(struct nf_conn *ct, bool *alive);
        int (*ct_helper_exist_check)(struct nf_conn *ct, struct nf_conntrack_helper **helper);
+  int (*ct_helper_is_conenat_check)(struct nf_conntrack_helper *helper);^M
        int (*ct_timer_refresh)(struct nf_conn *ct);
        int (*ct_flush)(void);
        int (*ct_tcp_liberal_set)(struct nf_conn *ct);
@@ -621,6 +622,7 @@ int rtk_fc_ct_expiretime_get(struct nf_conn *ct, unsigned long *time);
 int rtk_fc_ct_protonum_get(struct nf_conn *ct, unsigned char *proton