Update SPGW, mme image for following fixes

Update SPGW, mme image for following fixes
1. SPGW: fix for socket reuse option, SPGW fix to allow UPF to
     allocate address if UPF supports the address allocation feature
2. MME fix for NAS message encoding, adding default option in the apn
   which will be used as default spgw if no apn is found in the list

Change-Id: I2a626d655d9f5be05d8b27c5713ecffbecc525cc
diff --git a/omec/omec-control-plane/Chart.yaml b/omec/omec-control-plane/Chart.yaml
index b9428f1..b7610d4 100644
--- a/omec/omec-control-plane/Chart.yaml
+++ b/omec/omec-control-plane/Chart.yaml
@@ -10,4 +10,4 @@
 name: omec-control-plane
 icon: https://guide.opencord.org/logos/cord.svg
 
-version: 0.7.3
+version: 0.7.4
diff --git a/omec/omec-control-plane/values.yaml b/omec/omec-control-plane/values.yaml
index 9004263..033adec 100644
--- a/omec/omec-control-plane/values.yaml
+++ b/omec/omec-control-plane/values.yaml
@@ -10,8 +10,8 @@
     depCheck: quay.io/stackanetes/kubernetes-entrypoint:v0.3.1
     hssdb: registry.aetherproject.org/proxy/omecproject/c3po-hssdb:master-9a5f565
     hss: registry.aetherproject.org/proxy/omecproject/c3po-hss:master-9a5f565
-    mme: registry.aetherproject.org/proxy/omecproject/nucleus:master-c0d9143
-    spgwc: registry.aetherproject.org/omecproject/spgw:master-6aad2f2
+    mme: registry.aetherproject.org/proxy/omecproject/nucleus:master-2dac293
+    spgwc: registry.aetherproject.org/omecproject/spgw:master-86f31e4
     pcrf: registry.aetherproject.org/proxy/omecproject/c3po-pcrf:pcrf-b29af70
     pcrfdb: registry.aetherproject.org/proxy/omecproject/c3po-pcrfdb:pcrf-b29af70
     config4g: registry.aetherproject.org/omecproject/5gc-webui:onf-release3.0.5-73f0e35
@@ -208,6 +208,7 @@
             best-effort-internet-access:
               definition:
                 Charging-Rule-Name: "best-effort-internet-access"
+                Flow-Status: 2
                 QoS-Information:
                   QoS-Class-Identifier: 9
                   Max-Requested-Bandwidth-UL: 512000
@@ -436,6 +437,7 @@
             plmn2: "mcc=208,mnc=01"
           apnlist:
             internet: "spgwc"
+            default: "spgwc" #default spgwc to be used
           feature_list:
             dcnr_support: "disabled"
           security: