ARM: dts: am335x: Add support for Bosch Guardian

The Bosch Guardian is a TI am335x based device.

It's hardware specifications are as follows:

 * 256 MB DDR3 memory
 * 512 MB NAND Flash
 * USB OTG
 * RS232
 * MicroSD external storage
 * LCD Display interface
Signed-off-by: Martyn Welch <martyn.welch@collabora.com>
[tony@atomide.com: updated to use #include]
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/Makefile

@@ -719,6 +719,7 @@ dtb-$(CONFIG_SOC_AM33XX) += \
 	am335x-cm-t335.dtb \
 	am335x-evm.dtb \
 	am335x-evmsk.dtb \
+	am335x-guardian.dtb \
 	am335x-icev2.dtb \
 	am335x-lxm.dtb \
 	am335x-moxa-uc-2101.dtb \