chore: set openebs-hostpath to default storage class

Author: roperscrossroads

kubernetes/apps/openebs-system/openebs/app/helmrelease.yaml

@@ -45,5 +45,5 @@ spec:
       hostpathClass:
         enabled: true
         name: openebs-hostpath
-        isDefaultClass: false
+        isDefaultClass: true
         basePath: /var/openebs/local