AMF & MME image updates

AMF :
  1) fix amf crash when old gnb sends messages
  2) fix related to typecasting of messages to wrong message type
  3) fix for updating logging handles
  4) misc fixes

MME :
  fix for memory leak

SGW: Removing DNS config from helm chart
  enable Gx interface by default
  enable UPF failure detection based on heart beat failure
Change-Id: Ia50ca975c912c1f09561076f5bd95c40c7fad4f9
diff --git a/5g-control-plane/values.yaml b/5g-control-plane/values.yaml
index 7ac7ee9..7f3ac59 100644
--- a/5g-control-plane/values.yaml
+++ b/5g-control-plane/values.yaml
@@ -5,7 +5,7 @@
 images:
   tags:
     init: docker.io/omecproject/pod-init:1.0.0
-    amf: registry.aetherproject.org/omecproject/5gc-amf:onf-release3.0.5-03d3c6d
+    amf: registry.aetherproject.org/omecproject/5gc-amf:onf-release3.0.5-236ec6e
     nrf: registry.aetherproject.org/omecproject/5gc-nrf:onf-release3.0.5-13304e8
     smf: registry.aetherproject.org/omecproject/5gc-smf:onf-release3.0.5-46da14d
     ausf: registry.aetherproject.org/omecproject/5gc-ausf:onf-release3.0.5-be7d4ac