rockchip: dts: rk3328: update dmc node for driver

Update dmc node for full feature driver.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
[cherry picked from commit https://github.com/rockchip-linux/u-boot/commit/1e1495636574c78ea9d3af3e0aae95d5204612d6 with minor modifications]
Signed-off-by: Matwey V. Kornilov <matwey.kornilov@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/dts/rk3328-evb-u-boot.dtsi b/arch/arm/dts/rk3328-evb-u-boot.dtsi
index 22bfaef..58ebf52 100644
--- a/arch/arm/dts/rk3328-evb-u-boot.dtsi
+++ b/arch/arm/dts/rk3328-evb-u-boot.dtsi
@@ -3,6 +3,8 @@
  * (C) Copyright 2016 Rockchip Electronics Co., Ltd
  */
 
+#include "rk3328-sdram-ddr3-666.dtsi"
+
 / {
 	aliases {
 		mmc0 = &emmc;