Fixed the wrong directory and  the node for graph

Change-Id: I99ffe47a0e88310839cf3733e5effc8ea5060baa
diff --git a/TestON/tests/USECASE/SegmentRouting/SRMulticast/SRMulticast.params b/TestON/tests/USECASE/SegmentRouting/SRMulticast/SRMulticast.params
index b7a9a36..0189744 100644
--- a/TestON/tests/USECASE/SegmentRouting/SRMulticast/SRMulticast.params
+++ b/TestON/tests/USECASE/SegmentRouting/SRMulticast/SRMulticast.params
@@ -2,7 +2,7 @@
     <testcases>1</testcases>
 
     <GRAPH>
-        <nodeCluster>VM</nodeCluster>
+        <nodeCluster>Fabric</nodeCluster>
         <builds>20</builds>
     </GRAPH>