Update powerflex.connect.on.demand config default to true

Author: sureshanaparti

plugins/storage/volume/scaleio/src/main/java/org/apache/cloudstack/storage/datastore/manager/ScaleIOSDCManagerImpl.java

@@ -61,7 +61,7 @@ public class ScaleIOSDCManagerImpl implements ScaleIOSDCManager, Configurable {
     static ConfigKey<Boolean> ConnectOnDemand = new ConfigKey<>("Storage",
             Boolean.class,
             "powerflex.connect.on.demand",
-            Boolean.FALSE.toString(),
+            Boolean.TRUE.toString(),
             "Connect PowerFlex client on Host when first Volume is mapped to SDC and disconnect when last Volume is unmapped from SDC," +
                     " otherwise no action (that is connection remains in the same state whichever it is, connected or disconnected).",
             Boolean.TRUE,