Fix helm publish script to merge properly with curreny index.yaml file

Change-Id: I83539231bfccfd3d2dd06a606d0fde604f804b88
diff --git a/helmrepo.sh b/helmrepo.sh
index a1336b5..4d752a0 100755
--- a/helmrepo.sh
+++ b/helmrepo.sh
@@ -43,7 +43,9 @@
 
 echo "Generating repo index"
 
-helm repo index "${REPO_DIR}" --url "${PUBLISH_URL}" --merge "${ORIGINAL_INDEX_YAML}"
+scp "${PUBLISH_URL}":"${ORIGINAL_INDEX_YAML}" .
+
+helm repo index "${REPO_DIR}" --url "${PUBLISH_URL}" --merge index.yaml
 
 echo "Finished, chart repo generated: ${REPO_DIR}"