Always ignore root node when adding node to dynamic config store

Change-Id: I8cb0021fc9098fb71743f64dfbf0733c794452fc
diff --git a/apps/config/src/main/java/org/onosproject/config/impl/DistributedDynamicConfigStore.java b/apps/config/src/main/java/org/onosproject/config/impl/DistributedDynamicConfigStore.java
index 1ae8d46..a143fca 100644
--- a/apps/config/src/main/java/org/onosproject/config/impl/DistributedDynamicConfigStore.java
+++ b/apps/config/src/main/java/org/onosproject/config/impl/DistributedDynamicConfigStore.java
@@ -145,7 +145,7 @@
         if (spath == null) {
             throw new FailedException("Invalid ResourceId, cannot create Node");
         }
-        if (spath.equals(ResourceIdParser.ROOT) && node == null) {
+        if (spath.equals(ResourceIdParser.ROOT)) {
             return CompletableFuture.completedFuture(true);
         } else if (complete(keystore.get(DocumentPath.from(spath))) == null) {
             throw new FailedException("Node or parent does not exist for " + spath);