arm64: dts: fsl: librem5: enable the touchscreen

Add the touchscreen node for the Librem5 devkit
Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>

arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts

@@ -886,6 +886,18 @@
 		power-supply = <&reg_pwr_en>;
 	};
 
+	goodix_ts: touchscreen@5d {
+		compatible = "goodix,gt5688", "goodix,gt1x";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_goodix_ts>;
+		reg = <0x5d>;
+		interrupt-parent = <&gpio3>;
+		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+		reset-gpios = <&gpio1 5 GPIO_ACTIVE_HIGH>;
+		irq-gpios = <&gpio3 0 GPIO_ACTIVE_HIGH>;
+		touchscreen-size-x = <720>;
+		touchscreen-size-y = <1440>;
+	};
 };
 
 &usb3_phy0 {