Create DHCP configuration DBUS object

Network Manager creates the DHCP configuration
object.

Change-Id: I0119aa4a4b688adec7f7160ff1706aa87cc2bd1f
Signed-off-by: Ratan Gupta <ratagupt@in.ibm.com>
diff --git a/network_manager.cpp b/network_manager.cpp
index 1612f6d..011e978 100644
--- a/network_manager.cpp
+++ b/network_manager.cpp
@@ -76,6 +76,10 @@
     objPath /= "config";
     systemConf = std::make_unique<phosphor::network::SystemConfiguration>(
                         bus, objPath.string(), *this);
+    // create the dhcp conf object.
+    objPath /= "dhcp";
+    dhcpConf = std::make_unique<phosphor::network::dhcp::Configuration>(
+                        bus, objPath.string(), *this);
 
 }