mgw: Ensure TC_selftest passed if no error is encountered

Change-Id: Ie1601d57ac5bf9ddf99cbbd1cdb91160dc47c84d
diff --git a/mgw/MGCP_Test.ttcn b/mgw/MGCP_Test.ttcn
index 467ebfc..8cb2404 100644
--- a/mgw/MGCP_Test.ttcn
+++ b/mgw/MGCP_Test.ttcn
@@ -151,6 +151,9 @@
 		log(c_crcx510_ret);
 		log(dec_MgcpResponse(c_crcx510_ret));
 		log(dec_MgcpMessage(c_crcx510_ret));
+
+		/* We didn't encounter any DTE, so pass the test */
+		setverdict(pass);
 	}
 
 	/* CRCX test ideas: