Fixing att-workflow chart

Change-Id: Ifeb38812eb24d9f42656a382975cacc64ad010f7
diff --git a/workflows/att-workflow/Chart.yaml b/workflows/att-workflow/Chart.yaml
index cbe1471..cae249c 100644
--- a/workflows/att-workflow/Chart.yaml
+++ b/workflows/att-workflow/Chart.yaml
@@ -18,4 +18,6 @@
 description: A Helm chart for XOS's "att-workflow"
 icon: https://guide.opencord.org/logos/cord.svg
 version: 1.0.0
-appVersion: 1.0.0
+
+# xosproject/tosca-loader version
+appVersion: 1.1.5