Add Timeout to stc commands in Jenkinsfile for SCPF tests

Change-Id: I968a18d30c274cc02b35fbb665a6fa5b46875a0a
diff --git a/TestON/tests/SCPF/Jenkinsfile b/TestON/tests/SCPF/Jenkinsfile
index d52afd6..585bf93 100644
--- a/TestON/tests/SCPF/Jenkinsfile
+++ b/TestON/tests/SCPF/Jenkinsfile
@@ -126,7 +126,9 @@
                     cd ~
                     export PATH=$PATH:onos/tools/test/bin
 
-                    stc teardown
+                    timeout 240 stc shutdown
+                    timeout 240 stc teardown
+                    timeout 240 stc shutdown
 
                     cd ~/OnosSystemTest/TestON/bin
                     git log |head