VCL: add IPv6 to socket_test.sh and make test

Change-Id: If3827828062a46f1cce43642535333f677f06e62
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
diff --git a/src/vcl/sock_test.h b/src/vcl/sock_test.h
index 0729c31..f9f5c70 100644
--- a/src/vcl/sock_test.h
+++ b/src/vcl/sock_test.h
@@ -69,6 +69,8 @@
   uint32_t ctrl_handle;
   uint32_t num_test_sockets;
   uint32_t verbose;
+  uint32_t address_ip6;
+  uint32_t transport_udp;
   uint64_t rxbuf_size;
   uint64_t txbuf_size;
   uint64_t num_writes;