Add ovn-encap-tos inherit to uni04delta-ipv4 and uni07eta

Related-to: OSPRH-6712

Author: renjingxiao

examples/dt/uni04delta/values.yaml

@@ -76,6 +76,7 @@ data:
         edpm_nodes_validation_validate_controllers_icmp: false
         edpm_nodes_validation_validate_gateway_icmp: false
 
+        edpm_ovn_encap_tos: "inherit"
         edpm_sshd_configure_firewall: true
         edpm_sshd_allowed_ranges:
           - 192.168.122.0/24

examples/dt/uni07eta/values.yaml

@@ -7,4 +7,8 @@ metadata:
   annotations:
     config.kubernetes.io/local-config: "true"
 
-data: {}
+data:
+  nodeset:
+    ansible:
+      ansibleVars:
+        edpm_ovn_encap_tos: "inherit"