Modifying the default kv_store_data_prefix to align to stack helm chart standard deployment

Change-Id: Ib15f8b7f004e4fc940fb5f683d3fc1061794015b
diff --git a/pkg/config/configmanager.go b/pkg/config/configmanager.go
index 01e4375..27c6426 100644
--- a/pkg/config/configmanager.go
+++ b/pkg/config/configmanager.go
@@ -29,7 +29,7 @@
 
 const (
 	defaultkvStoreConfigPath     = "config"
-	defaultkvStoreDataPathPrefix = "service/voltha_voltha"
+	defaultkvStoreDataPathPrefix = "service/voltha/voltha1_voltha1"
 	kvStorePathSeparator         = "/"
 )