sccp: Stop test on rx unexpected sccp msg

Change-Id: I3889d7f275d3461fb51209d28c101a5570aca9b3
diff --git a/sccp/SCCP_Tests_RAW.ttcn b/sccp/SCCP_Tests_RAW.ttcn
index 0091cb4..3d16706 100644
--- a/sccp/SCCP_Tests_RAW.ttcn
+++ b/sccp/SCCP_Tests_RAW.ttcn
@@ -146,9 +146,11 @@
 		}
 	[] MTP3.receive {
 		setverdict(fail, "Unexpected MTP/SCCP received");
+		self.stop
 		}
 	[] T.timeout {
 		setverdict(fail, "Timeout waiting for ", exp);
+		self.stop
 		}
 	}
 }