imx8mq: synchronise device tree with linux

Synchronise device tree with linux v5.19-rc5.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
diff --git a/arch/arm/dts/imx8mq-kontron-pitx-imx8m.dts b/arch/arm/dts/imx8mq-kontron-pitx-imx8m.dts
index e8fbf0e..a91c136 100644
--- a/arch/arm/dts/imx8mq-kontron-pitx-imx8m.dts
+++ b/arch/arm/dts/imx8mq-kontron-pitx-imx8m.dts
@@ -51,6 +51,7 @@
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
 		gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>;
+		off-on-delay-us = <20000>;
 		enable-active-high;
 	};
 };
@@ -310,7 +311,7 @@
 &uart3 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart3>;
-	fsl,uart-has-rtscts;
+	uart-has-rtscts;
 	assigned-clocks = <&clk IMX8MQ_CLK_UART3>;
 	assigned-clock-parents = <&clk IMX8MQ_SYS1_PLL_80M>;
 	status = "okay";