add hw menuconfig

config/Config-hw.in

@@ -0,0 +1,38 @@
+# Copyright (C) 2006-2013 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+menu "Hardward Version"
+	comment "Choise the board hardware version"
+	
+	choice
+			prompt "Hardware Version"                        
+			default BOARD_HARDWARE_VERSION_DVT
+			help
+			  Select hardware version.
+
+			config BOARD_HARDWARE_VERSION_DVT
+					bool "Build for DVT board"
+					help
+					  This will set hardware version to DVT.
+
+			config BOARD_HARDWARE_VERSION_EVT
+					bool "Build for EVT board"
+					help
+					  This will set hardware version to EVT.
+
+			config BOARD_HARDWARE_VERSION_R311_PV1
+					bool "Build for R311 PV1 board"
+					help
+					  This will set hardware version to r311 pv1.
+
+			config BOARD_HARDWARE_VERSION_R311_PV2
+					bool "Build for R311 PV2 board"
+					help
+					  This will set hardware version to r311 pv2.
+			
+	endchoice                        
+
+endmenu

config/top_config.in

@@ -26,6 +26,8 @@ source "config/Config-systeminit.in"
 
 source "config/Config-devel.in"
 
+source "config/Config-hw.in"
+
 source "toolchain/Config.in"
 
 source "target/imagebuilder/Config.in"