ARM: dts: vf6xx: Cosmic+: M4(nommu) initial support

Minimal Cortex-M4 device tree to boot Linux to shell. M4 is booted via
Cortex-A5 running Linux using Stefan Agner's <stefan@agner.ch> "m4boot"
utility.

Signed-off-by: Afzal Mohammed <afzal.mohd.ma@gmail.com>
Acked-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 30bbc37..9b00aa9 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -359,6 +359,7 @@
 	vf610-colibri-eval-v3.dtb \
 	vf610m4-colibri.dtb \
 	vf610-cosmic.dtb \
+	vf610m4-cosmic.dtb \
 	vf610-twr.dtb
 dtb-$(CONFIG_ARCH_MXS) += \
 	imx23-evk.dtb \