connect vBBU, vMME,vHSS, vSGW, vPGWC slice to its service

Change-Id: I2ed2ef6a5d838b57e845941f292cc78b1c8d3a06
diff --git a/roles/cord-profile/templates/vsg-net.yaml.j2 b/roles/cord-profile/templates/vsg-net.yaml.j2
index e86078d..bb5e546 100644
--- a/roles/cord-profile/templates/vsg-net.yaml.j2
+++ b/roles/cord-profile/templates/vsg-net.yaml.j2
@@ -20,7 +20,7 @@
           translation: none
           vtn_kind: VSG
 
-    {{ site_name }}_vsg-access:
+    vsg_network:
       type: tosca.nodes.network.Network
       properties:
           ip_version: 4