VOM: NAT coverity found bugs

Change-Id: Ic55ad2e0a1435f552ce84ed1a9b1981191bc178b
Signed-off-by: Neale Ranns <nranns@cisco.com>
diff --git a/src/vpp-api/vom/nat_binding.cpp b/src/vpp-api/vom/nat_binding.cpp
index a2e71b3..a3f7111 100644
--- a/src/vpp-api/vom/nat_binding.cpp
+++ b/src/vpp-api/vom/nat_binding.cpp
@@ -119,7 +119,7 @@
       HW::enqueue(new nat_binding_cmds::bind_44_input_cmd(
         m_binding, m_itf->handle(), m_zone));
     } else {
-      HW::enqueue(new nat_binding_cmds::bind_44_input_cmd(
+      HW::enqueue(new nat_binding_cmds::bind_44_output_cmd(
         m_binding, m_itf->handle(), m_zone));
     }
   }