rockchip: rk3399: Add Orangepi RK3399 support

Add initial support for Orangepi RK3399 board.

Specification
- Rockchip RK3399
- 2GB/4GB DDR3
- 16GB eMMC
- SD card slot
- RTL8211E 1Gbps
- AP6356S WiFI/BT
- HDMI In/Out, DP, MIPI DSI/CSI
- Mini PCIe
- Sensors, Keys etc
- DC12V-2A and DC5V-2A

Commit details about Linux DTS sync:
"arm64: dts: rockchip: Add support for the Orange Pi RK3399"
(sha1: d3e71487a790979057c0fdbf32f85033639c16e6)

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index b4dc57e..8c0ff5f 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -74,6 +74,7 @@
 	rk3288-fennec.dtb \
 	rk3288-firefly.dtb \
 	rk3288-miqi.dtb \
+	rk3399-orangepi.dtb \
 	rk3288-phycore-rdk.dtb \
 	rk3288-popmetal.dtb \
 	rk3288-rock2-square.dtb \