Update omec-user-plan chart

1) Add an option to send gratuitous ARP reply
2) Add default dnn and hostname
3) Change the image name used in coredump init container to tools
4) Adjust resource req/limits for init container
5) Update pfcp agent container name from cpiface to pfcp-agent

Change-Id: I110c7d7cc6f58ab20ae7d374ae92d72e315cd80e
diff --git a/omec/omec-user-plane/values.yaml b/omec/omec-user-plane/values.yaml
index e52f2ad..858048c 100644
--- a/omec/omec-user-plane/values.yaml
+++ b/omec/omec-user-plane/values.yaml
@@ -4,9 +4,9 @@
 
 images:
   tags:
-    init: docker.io/omecproject/pod-init:1.0.0
     bess: registry.aetherproject.org/proxy/omecproject/upf-epc-bess:master-49283ad
     pfcpiface: registry.aetherproject.org/proxy/omecproject/upf-epc-pfcpiface:master-49283ad
+    tools: registry.aetherproject.org/tools/busybox:stable
   pullPolicy: IfNotPresent
   # Secrets must be manually created in the namespace.
   pullSecrets:
@@ -53,6 +53,9 @@
   coreDump:
     enabled: false
     path: /tmp/coredump
+  gratuitousArp:
+    enabled: false
+    interval: 10 # seconds
   upf:
     # Enable privileged when run from VM with sriov support
     privileged: false
@@ -91,6 +94,9 @@
         core:
           ifname: core
         measure: true
+        cpiface:
+          dnn: "internet"
+          hostname: "upf"
 
 service:
   type: ClusterIP