Fixed issue in setting vm ip,mac in vm_instance table

This issue is not seen in 4.2, It is observed only in 4.3.

server/src/com/cloud/vm/UserVmManagerImpl.java

@@ -3248,6 +3248,7 @@ public class UserVmManagerImpl extends ManagerBase implements UserVmManager, Vir
                     || network.getTrafficType() == TrafficType.Public) {
                 userVm.setPrivateIpAddress(nic.getIp4Address());
                 userVm.setPrivateMacAddress(nic.getMacAddress());
+                _vmDao.update(userVm.getId(), userVm);
             }
         }