arm64: dts: rockchip: Enable UART6 on rock-5b

Enable UART lines on Radxa ROCK 5 Model B M.2 Key E.

Signed-off-by: Tamás Szűcs <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Heiko Stuebner <[email protected]>

Author: Tamás Szűcs

arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts

@@ -377,6 +377,12 @@
 	status = "okay";
 };
 
+&uart6 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart6m1_xfer &uart6m1_ctsn &uart6m1_rtsn>;
+	status = "okay";
+};
+
 &spi2 {
 	status = "okay";
 	assigned-clocks = <&cru CLK_SPI2>;