renaming helm-chart of "volt" service to "olt-service"

Change-Id: Iaa3946937edde5c668f2f77ed86e254a9ca3c061
diff --git a/xos-profiles/seba-services/requirements.yaml b/xos-profiles/seba-services/requirements.yaml
index fbe7ee6..8ca9a0a 100644
--- a/xos-profiles/seba-services/requirements.yaml
+++ b/xos-profiles/seba-services/requirements.yaml
@@ -25,9 +25,9 @@
   version: 2.2.0
   repository: file://../../xos-services/fabric
   condition: fabric.enabled
-- name: volt
-  version: 2.2.0
-  repository: file://../../xos-services/volt
+- name: olt-service
+  version: 2.2.1
+  repository: file://../../xos-services/olt-service
 - name: fabric-crossconnect
   version: 1.2.0
   repository: file://../../xos-services/fabric-crossconnect