ARM: dts: Add Odroid XU3 Lite support

The Odroid XU3 Lite is almost the same as XU3, except:
1. Lower CPU frequencies (1.8 GHz for A15 and 1.3 GHz for A7, instead of
   2.0 GHz and 1.4 GHz).
2. No DisplayPort.
3. No TI INA231 energy measurement sensors.

This patch moves common nodes (which is almost everything) to a common
DTSI file and adds a new XU3 Lite DTS.

Currently in comparison to XU3, only the INA231 sensors are disabled to
remove the warning:
ina2xx 0-0040: error configuring the device: -6
Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>

arch/arm/boot/dts/Makefile

@@ -113,6 +113,7 @@ dtb-$(CONFIG_ARCH_EXYNOS5) += \
 	exynos5420-peach-pit.dtb \
 	exynos5420-smdk5420.dtb \
 	exynos5422-odroidxu3.dtb \
+	exynos5422-odroidxu3-lite.dtb \
 	exynos5440-sd5v1.dtb \
 	exynos5440-ssdk5440.dtb \
 	exynos5800-peach-pi.dtb

arch/arm/boot/dts/exynos5422-odroidxu3-lite.dts

+/*
+ * Hardkernel Odroid XU3-Lite board device tree source
+ *
+ * Copyright (c) 2015 Krzysztof Kozlowski
+ * Copyright (c) 2014 Collabora Ltd.
+ * Copyright (c) 2013 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+/dts-v1/;
+#include "exynos5422-odroidxu3-common.dtsi"
+
+/ {
+	model = "Hardkernel Odroid XU3 Lite";
+	compatible = "hardkernel,odroid-xu3-lite", "samsung,exynos5800", "samsung,exynos5";
+};