Fix removeFlowsOnDisable flag for DT for voltha 2.10

Change-Id: I1648b3700af4bbbf44a88b6b664c8fa879a95290
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