Get correct latency in SCPFintentInstallWithdrawLat

Change-Id: Ib280935615cc1f1fd9ebfd8b67d5481c8545216b
diff --git a/TestON/tests/SCPF/SCPFintentInstallWithdrawLat/SCPFintentInstallWithdrawLat.py b/TestON/tests/SCPF/SCPFintentInstallWithdrawLat/SCPFintentInstallWithdrawLat.py
index 8b798bd..f4c1c8e 100644
--- a/TestON/tests/SCPF/SCPFintentInstallWithdrawLat/SCPFintentInstallWithdrawLat.py
+++ b/TestON/tests/SCPF/SCPFintentInstallWithdrawLat/SCPFintentInstallWithdrawLat.py
@@ -202,7 +202,7 @@
                                 continue
 
                         try:
-                            latency = int( installResult.split()[ 5 ] )
+                            latency = int( installResult.split()[ -2 ] )
                             main.log.info( installResult )
                         except:
                             main.log.error( "Failed to get latency, ignore this iteration." )
@@ -245,7 +245,7 @@
                                 continue
 
                         try:
-                            latency = int( withdrawResult.split()[ 5 ] )
+                            latency = int( withdrawResult.split()[ -2 ] )
                             main.log.info( withdrawResult )
                         except:
                             main.log.error( "Failed to get latency, ignore this iteration." )