Longhorn: Upgrade from 1.8.1 to 1.9.0

Change-Id: I809890d3f73e85119c5f3d97e53856bd371c8c81
diff --git a/charts/longhorn/templates/extra-objects.yaml b/charts/longhorn/templates/extra-objects.yaml
new file mode 100644
index 0000000..f7e34d7
--- /dev/null
+++ b/charts/longhorn/templates/extra-objects.yaml
@@ -0,0 +1,4 @@
+{{- range .Values.extraObjects }}
+---
+{{- tpl (toYaml . ) $ }}
+{{- end }}