Subscriber proxy config in helm charts

Change-Id: I601834450b4c85f8d7407f252f519b8dc575234f
diff --git a/omec-sub-provision/values.yaml b/omec-sub-provision/values.yaml
index ef7132b..2cff7d0 100644
--- a/omec-sub-provision/values.yaml
+++ b/omec-sub-provision/values.yaml
@@ -75,6 +75,9 @@
           sub-provision-endpt:
             addr: webui
             port: 5000
+          #sub-proxy-endpt:
+          #  addr: subproxy-proxy-url
+          #  port: <subscriber-proxy-port>
           device-groups:
           - name:  "iot-camera"
             imsis: