Adding check for failures at the end of the net-smoke.xml scenario.

Change-Id: Ib06c04944211e44143e883f09118a0bcec0527be
diff --git a/tools/test/scenarios/net-smoke.xml b/tools/test/scenarios/net-smoke.xml
index a297721..980a011 100644
--- a/tools/test/scenarios/net-smoke.xml
+++ b/tools/test/scenarios/net-smoke.xml
@@ -55,5 +55,10 @@
                                                   ~Net-REST,
                                                   ~Net-Create-Flows,
                                                   ~Net-Topo"/>
+
+        <parallel var="${OC#}">
+            <step name="Net-Smoke-Check-Logs-${#}" requires="~Net-Teardown"
+                  exec="onos-check-logs ${OC#}"/>
+        </parallel>
     </group>
 </scenario>