AETHER-507 Replace 4g terms to 5g terms for omec-user-plane

Change-Id: Ica6e607b80dfed12924d468f5de5cdca593275f3
diff --git a/omec/omec-control-plane/values.yaml b/omec/omec-control-plane/values.yaml
index 57c65d5..81dc1d7 100644
--- a/omec/omec-control-plane/values.yaml
+++ b/omec/omec-control-plane/values.yaml
@@ -318,7 +318,7 @@
             mtu: 1460
         user-plane-profiles:
           user-plane1:
-            user-plane: spgwu-headless
+            user-plane: upf-headless
             qos-tags:
               tag1: BW
             access-tags: