Fix removeFlowsOnDisable flag for DT

Change-Id: I41b9d03f94f0ea29fb8d16e20359726fd73d1634
diff --git a/examples/dt-values.yaml b/examples/dt-values.yaml
old mode 100644
new mode 100755
index f2e57a2..af5c4e5
--- a/examples/dt-values.yaml
+++ b/examples/dt-values.yaml
@@ -26,7 +26,7 @@
           "enableEapol": "false",
           "enableDhcpV6": "false",
           "enableDhcpV4": "false",
-          "removeFlowsOnDisable": "true"
+          "removeFlowsOnDisable": "false"
         }
 
 # override BBSim config