Support ConfigDrive with VPC (apache#10495)

Author: vishesh92

server/src/main/java/com/cloud/network/element/ConfigDriveNetworkElement.java

@@ -203,8 +203,8 @@ public Map<Service, Map<Capability, String>> getCapabilities() {
     private static Map<Service, Map<Capability, String>> setCapabilities() {
         Map<Service, Map<Capability, String>> capabilities = new HashMap<>();
         capabilities.put(Service.UserData, null);
-        capabilities.put(Service.Dhcp, new HashMap<>());
-        capabilities.put(Service.Dns, new HashMap<>());
+        capabilities.put(Service.Dhcp, Map.of(Network.Capability.DhcpAccrossMultipleSubnets, "true"));
+        capabilities.put(Service.Dns, Map.of(Capability.AllowDnsSuffixModification, "true"));
         return capabilities;
     }
 
@@ -841,7 +841,7 @@ public boolean addDhcpEntry(Network network, NicProfile nic, VirtualMachineProfi
     public boolean configDhcpSupportForSubnet(Network network, NicProfile nic, VirtualMachineProfile vm,
             DeployDestination dest,
             ReservationContext context) throws ConcurrentOperationException, InsufficientCapacityException, ResourceUnavailableException {
-        return false;
+        return true;
     }
 
     @Override

ui/src/views/offering/AddVpcOffering.vue

@@ -449,12 +449,16 @@ export default {
         services.push({
           name: 'Dhcp',
           provider: [
-            { name: 'VpcVirtualRouter' }
+            { name: 'VpcVirtualRouter' },
+            { name: 'ConfigDrive' }
           ]
         })
         services.push({
           name: 'Dns',
-          provider: [{ name: 'VpcVirtualRouter' }]
+          provider: [
+            { name: 'VpcVirtualRouter' },
+            { name: 'ConfigDrive' }
+          ]
         })
         services.push({
           name: 'Lb',