arm: dts: rockchip: Add dts for rk3568 evb

Add dts for rk3568 evb, sync from the linux kernel
upstream list [0].

[0] https://patchwork.kernel.org/project/linux-rockchip/list/?series=474969

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 0960682..9918e46 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -146,6 +146,9 @@
 	rk3399-rockpro64.dtb \
 	rk3399pro-rock-pi-n10.dtb
 
+dtb-$(CONFIG_ROCKCHIP_RK3568) += \
+	rk3568-evb.dtb
+
 dtb-$(CONFIG_ROCKCHIP_RV1108) += \
 	rv1108-elgin-r1.dtb \
 	rv1108-evb.dtb