AETHER-1805 Add support of VLAN in UPF interfaces

Change-Id: I351323fed8a8476e1112674f78cdc273481aee75
diff --git a/omec/omec-user-plane/values.yaml b/omec/omec-user-plane/values.yaml
index f8ba6cb..ea376a3 100644
--- a/omec/omec-user-plane/values.yaml
+++ b/omec/omec-user-plane/values.yaml
@@ -71,10 +71,12 @@
       gateway: 192.168.252.1
       ip: 192.168.252.3/24
       #mac:
+      #vlan:
     core:
       gateway: 192.168.250.1
       ip: 192.168.250.3/24
       #mac:
+      #vlan:
     cfgFiles:
       upf.json:
         mode: dpdk