socfpga: add support for Terasic DE1-SoC board

Add CycloneV based Terasic DE1-SoC board. The board boots
from SD/MMC. Ethernet and USB host is supported.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Marek Vasut <marex@denx.de>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 570e089..f437469 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -133,6 +133,7 @@
 	socfpga_cyclone5_mcvevk.dtb			\
 	socfpga_cyclone5_socdk.dtb			\
 	socfpga_cyclone5_de0_nano_soc.dtb			\
+	socfpga_cyclone5_de1_soc.dtb			\
 	socfpga_cyclone5_sockit.dtb			\
 	socfpga_cyclone5_socrates.dtb			\
 	socfpga_cyclone5_sr1500.dtb			\