ARM: dts: omap3-gta04: Rename gta04.dts to gta04.dtsi and add a4 model

This patch is preparation of adding more boards which have common moved
to omap3-gta04.dtsi. Other boards have only small additions to omap3-gta04a4.

Signed-off-by: Marek Belisko <[e-mail]>
Signed-off-by: Tony Lindgren <[e-mail]>

arch/arm/boot/dts/Makefile

···
 	omap3-devkit8000.dtb \
 	omap3-evm.dtb \
 	omap3-evm-37xx.dtb \
-	omap3-gta04.dtb \
+	omap3-gta04a4.dtb \
 	omap3-igep0020.dtb \
 	omap3-igep0030.dtb \
 	omap3-ldp.dtb \

arch/arm/boot/dts/omap3-gta04a4.dts

···
+/*
+ * Copyright (C) 2014 Marek Belisko <[e-mail]>
+ *
+ * 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.
+ */
+
+#include "omap3-gta04.dtsi"
+
+/ {
+	model = "Goldelico GTA04A4";
+};