arm64: dts: imx8qxp-mek: Fix gpio-sbu-mux compatible

Per gpio-sbu-mux.yaml, the compatible entry is incomplete.

The imx8qxp-mek board uses a CBDTU02043, so complete the gpio-sbu-mux
compatible accordingly.

This fixes the following schema warning:

imx8qxp-mek.dtb: gpio-sbu-mux: compatible:0: 'gpio-sbu-mux' is not one of ['onnn,fsusb43l10x', 'pericom,pi3usb102']
	from schema $id: http://devicetree.org/schemas/usb/gpio-sbu-mux.yaml#Signed-off-by: Fabio Estevam <festevam@denx.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8qxp-mek.dts

@@ -31,7 +31,7 @@ reg_usdhc2_vmmc: usdhc2-vmmc {
 	};
 
 	gpio-sbu-mux {
-		compatible = "gpio-sbu-mux";
+		compatible = "nxp,cbdtu02043", "gpio-sbu-mux";
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_typec_mux>;
 		select-gpios = <&lsio_gpio5 9 GPIO_ACTIVE_HIGH>;