rockchip: rk3368: sync main rk3368 dtsi from Linux

This is the state as of v5.10 + the recently added timer0 phandle
targetted at the 5.12 merge window.

With this the non-mainline nodes like the dmc move to a separate
rk3368-u-boot.dtsi that is included from the board-specific
-u-boot.dtsi files, similar to how rk3399 does this.

Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/dts/rk3368-geekbox-u-boot.dtsi b/arch/arm/dts/rk3368-geekbox-u-boot.dtsi
index 30ea9e4..0b724fa 100644
--- a/arch/arm/dts/rk3368-geekbox-u-boot.dtsi
+++ b/arch/arm/dts/rk3368-geekbox-u-boot.dtsi
@@ -3,6 +3,8 @@
  * (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH
  */
 
+#include "rk3368-u-boot.dtsi"
+
 &pinctrl {
 	u-boot,dm-pre-reloc;
 };