arm64: dts: rockchip: support complete_irq in dmc node for px30.

Change-Id: I99e474f323cf57a15e1ed7431bafe3514aedc603
Signed-off-by: Tony Xie <tony.xie@rock-chips.com>

Author: TonyXie06

arch/arm64/boot/dts/rockchip/px30.dtsi

@@ -1575,6 +1575,8 @@
 
 	dmc: dmc {
 		compatible = "rockchip,px30-dmc";
+		interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "complete_irq";
 		devfreq-events = <&dfi>;
 		clocks = <&cru SCLK_DDRCLK>;
 		clock-names = "dmc_clk";