arm64: dts: imx8qm-mek: add lsio mu5 and mu6

Add lsio mu5 and mu6.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8qm-mek.dts

@@ -286,6 +286,14 @@ spidev0: spi@0 {
 	};
 };
 
+&lsio_mu5 {
+	status = "okay";
+};
+
+&lsio_mu6 {
+	status = "okay";
+};
+
 &flexspi0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_flexspi0>;