rockchip: rk3399: Add EAIDK-610 support

Specification
- Rockchip RK3399
- LPDDR3 4GB
- TF sd scard slot
- eMMC
- AP6255 for WiFi + BT
- Gigabit ethernet
- HDMI out
- 40 pin header
- USB 2.0 x 2
- USB 3.0 x 1
- USB 3.0 Type-C x 1 work in otg mode
- 12V DC Power supply

The dts file is sync from linux-next[0].

[0]:https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/arch/arm64/boot/dts/rockchip/rk3399-eaidk-610.dts

Signed-off-by: Andy Yan <andyshrk@163.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 9b00b64..963a772 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -136,6 +136,7 @@
 
 dtb-$(CONFIG_ROCKCHIP_RK3399) += \
 	rk3399-evb.dtb \
+	rk3399-eaidk-610.dtb \
 	rk3399-ficus.dtb \
 	rk3399-firefly.dtb \
 	rk3399-gru-bob.dtb \