arm64: dts: imx8mq: Add a node for irqsteer

Add a node for the irqsteer interrupt controller found on the iMX8MQ
SoC.
Signed-off-by: Guido Günther <agx@sigxcpu.org>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mq.dtsi

@@ -815,6 +815,25 @@ fec1: ethernet@30be0000 {
 			};
 		};
 
+		bus@32c00000 { /* AIPS4 */
+			compatible = "fsl,imx8mq-aips-bus", "simple-bus";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0x32c00000 0x32c00000 0x400000>;
+
+			irqsteer: interrupt-controller@32e2d000 {
+				compatible = "fsl,imx8m-irqsteer", "fsl,imx-irqsteer";
+				reg = <0x32e2d000 0x1000>;
+				interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&clk IMX8MQ_CLK_DISP_APB_ROOT>;
+				clock-names = "ipg";
+				fsl,channel = <0>;
+				fsl,num-irqs = <64>;
+				interrupt-controller;
+				#interrupt-cells = <1>;
+			};
+		};
+
 		gpu: gpu@38000000 {
 			compatible = "vivante,gc";
 			reg = <0x38000000 0x40000>;