ARM: dts: stratix10: Add base dtsi and devkit dts

From the Linux v4.16-rc4, add the base dtsi and devkit dts files for
the Stratix10 SoCFPGA platform.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 62fbf32..ac7667b 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -193,6 +193,7 @@
 	socfpga_cyclone5_sockit.dtb			\
 	socfpga_cyclone5_socrates.dtb			\
 	socfpga_cyclone5_sr1500.dtb			\
+	socfpga_stratix10_socdk.dtb			\
 	socfpga_cyclone5_vining_fpga.dtb
 
 dtb-$(CONFIG_TARGET_DRA7XX_EVM) += dra72-evm.dtb dra7-evm.dtb	\