support for rlt-1600g-w and rlt-1600x-w in GPON mode

Change-Id: Ib230d3e336043980eb00427384a49cb8bd386bb2
diff --git a/agent/device/rlt-1600g-w/mkdebian/build_rlt-1600g-w_deb.sh b/agent/device/rlt-1600g-w/mkdebian/build_rlt-1600g-w_deb.sh
new file mode 100755
index 0000000..e4cc706
--- /dev/null
+++ b/agent/device/rlt-1600g-w/mkdebian/build_rlt-1600g-w_deb.sh
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+#Copyright 2018-present Open Networking Foundation
+#
+#Licensed under the Apache License, Version 2.0 (the "License");
+#you may not use this file except in compliance with the License.
+#You may obtain a copy of the License at
+#
+#http://www.apache.org/licenses/LICENSE-2.0
+#
+#Unless required by applicable law or agreed to in writing, software
+#distributed under the License is distributed on an "AS IS" BASIS,
+#WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#See the License for the specific language governing permissions and
+#limitations under the License.
+
+
+export ONL_ARCH="amd64"
+dpkg-buildpackage -b -us -uc -a"$ONL_ARCH"