ARM: ux500: Add skeleton DTS file for the u9540

This patch sees the creation of a sparse Device Tree file for
ST-Ericsson's latest development board supporting the latest
dual-core Cortex-a9 u9540 SoC.
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

arch/arm/boot/dts/u9540.dts

+/*
+ * Copyright 2012 ST-Ericsson AB
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/dts-v1/;
+/include/ "dbx5x0.dtsi"
+
+/ {
+	model = "ST-Ericsson U9540 platform with Device Tree";
+	compatible = "st-ericsson,u9540";
+
+	memory {
+		reg = <0x00000000 0x20000000>;
+	};
+
+	soc-u9500 {
+	};
+
+};