ARM: dts: rockchip: add spi dt node for rv1108

Add SPI device tree node for rv1108.
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm/boot/dts/rv1108.dtsi

@@ -200,6 +200,19 @@ i2c3: i2c@10260000 {
 		status = "disabled";
 	};
 
+	spi: spi@10270000 {
+		compatible = "rockchip,rv1108-spi";
+		reg = <0x10270000 0x1000>;
+		interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cru SCLK_SPI>, <&cru PCLK_SPI>;
+		clock-names = "spiclk", "apb_pclk";
+		dmas = <&pdma 8>, <&pdma 9>;
+		#dma-cells = <2>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "disabled";
+	};
+
 	grf: syscon@10300000 {
 		compatible = "rockchip,rv1108-grf", "syscon";
 		reg = <0x10300000 0x1000>;