testing: Add pfkey/shunt-policies-nat-rw scenario

testing/tests/ikev2/shunt-policies-nat-rw/evaltest.dat

@@ -1,3 +1,5 @@
+alice::ipsec status 2> /dev/null::local-net.*PASS::YES
+venus::ipsec status 2> /dev/null::local-net.*PASS::YES
 alice::ipsec status 2> /dev/null::nat-t.*ESTABLISHED.*alice@strongswan.org.*sun.strongswan.org::YES
 venus::ipsec status 2> /dev/null::nat-t.*ESTABLISHED.*venus.strongswan.org.*sun.strongswan.org::YES
 alice::ping -c 1 PH_IP_BOB::64 bytes from PH_IP_BOB: icmp_req=1::YES