msm: ipa: Add NAT and IPv6 CT suppression tests

Add kernel tests to validate NAT and IPv6 CT suppression
tests.

Change-Id: If69b651330846b92c85184c5afdeba73bafa1592
Signed-off-by: Chaitanya Pratapa <quic_cpratapa@quicinc.com>

kernel-tests/RoutingDriverWrapper.h

@@ -80,6 +80,7 @@ public:
 	bool Reset(enum ipa_ip_type ip);
 	bool GetRoutingTable(struct ipa_ioc_get_rt_tbl *routingTable);
 	bool PutRoutingTable(uint32_t routingTableHandle);
+	bool SetNatConntrackExcRoutingTable(uint32_t routingTableHandle, bool nat_or_conntrack);
 };
 
 #endif