rockchip: rk3328: migrate u-boot node to -u-boot.dtsi

Move all the nodes only shown in u-boot to -u-boot.dtsi to make
rk3328.dtsi clean.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/dts/rk3328-rock64-u-boot.dtsi b/arch/arm/dts/rk3328-rock64-u-boot.dtsi
index 21c2afc..1d441f7 100644
--- a/arch/arm/dts/rk3328-rock64-u-boot.dtsi
+++ b/arch/arm/dts/rk3328-rock64-u-boot.dtsi
@@ -1,38 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
- * (C) Copyright 2018 Rockchip Electronics Co., Ltd
- *
- * SPDX-License-Identifier:     GPL-2.0+
+ * (C) Copyright 2018-2019 Rockchip Electronics Co., Ltd
  */
 
+#include "rk3328-u-boot.dtsi"
 #include "rk3328-sdram-lpddr3-1600.dtsi"
 
-/ {
-	aliases {
-		mmc0 = &emmc;
-		mmc1 = &sdmmc;
-	};
-
-	chosen {
-		u-boot,spl-boot-order = &emmc, &sdmmc;
-	};
-};
-
-&cru {
-	u-boot,dm-pre-reloc;
-};
-
-&uart2 {
-	u-boot,dm-pre-reloc;
-};
-
-&emmc {
-	u-boot,dm-pre-reloc;
-};
-
-&sdmmc {
-	u-boot,dm-pre-reloc;
-};
-
 &usb_host0_xhci {
 	status = "okay";
 };