arm: kirkwood: Pogoplug-V4 : Add DTS files

Add DTS files for Pogoplug V4 board

Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Tony Dinh <mibodhi@gmail.com>
Reviewed-by: Pali Rohár <pali@kernel.org>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index ce33202..5d45d19 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -71,6 +71,7 @@
 	kirkwood-openrd-client.dtb \
 	kirkwood-openrd-ultimate.dtb \
 	kirkwood-pogo_e02.dtb \
+	kirkwood-pogoplug-series-4.dtb \
 	kirkwood-sheevaplug.dtb
 
 dtb-$(CONFIG_MACH_S900) += \