AETHER-17 Add support of BESS upf to comac-in-a-box

Also converged various configs under config.spgwu

Change-Id: I4f3383bb280494326a417ec6172427f806829f71
diff --git a/omec/omec-user-plane/templates/service-spgwu.yaml b/omec/omec-user-plane/templates/service-spgwu.yaml
index efa09ba..ddb2967 100644
--- a/omec/omec-user-plane/templates/service-spgwu.yaml
+++ b/omec/omec-user-plane/templates/service-spgwu.yaml
@@ -34,4 +34,4 @@
   - name: bess-web
     protocol: TCP
     port: 8000
-    nodePort: {{ .Values.config.bess.web.nodePort }}
+    nodePort: {{ .Values.config.spgwu.bess.web.nodePort }}