Updating volt_device to olt_device

Change-Id: I2efaf8b864b29df743eaf312e78c9f97fe606e32
diff --git a/roles/test-subscriber-config/templates/test-subscriber.yaml.j2 b/roles/test-subscriber-config/templates/test-subscriber.yaml.j2
index 88ee8fe..d82ee36 100644
--- a/roles/test-subscriber-config/templates/test-subscriber.yaml.j2
+++ b/roles/test-subscriber-config/templates/test-subscriber.yaml.j2
@@ -54,7 +54,7 @@
         must-exist: true
 
     # Setup an OLT Device
-    volt_device:
+    olt_device:
       type: tosca.nodes.OLTDevice
       properties:
         name: volt-1
@@ -65,14 +65,14 @@
             node: service#volt
             relationship: tosca.relationships.BelongsToOne
 
-    volt_port:
+    pon_port:
       type: tosca.nodes.PONPort
       properties:
         name: volt-port-1
         s_tag: 222
       requirements:
-        - volt_device:
-            node: volt_device
+        - olt_device:
+            node: olt_device
             relationship: tosca.relationships.BelongsToOne
 
     # A subscriber