Aether-3033. roc-model-2.0.x Change VCS to Slice

Change-Id: I4968ca1839671ddf3fe5120100628b096fae4647
diff --git a/config-models/aether-2.0.x/files/yang/onf-site.yang b/config-models/aether-2.0.x/files/yang/onf-site.yang
index 17cf478..8e63c00 100755
--- a/config-models/aether-2.0.x/files/yang/onf-site.yang
+++ b/config-models/aether-2.0.x/files/yang/onf-site.yang
@@ -13,7 +13,7 @@
   include onf-priority-traffic-rule;
   include onf-sim-card;
   include onf-upf;
-  include onf-vcs;
+  include onf-slice;
   include onf-device-group;
   include onf-ip-domain;
 
@@ -178,7 +178,7 @@
 
       uses upf;
 
-      uses vcs;
+      uses slice;
 
       uses device-group;