ARM: dts: kirkwood: fix pin names for UART/SD selection for OpenRD

The UART/SD pin names are swapped, fix that.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

arch/arm/boot/dts/kirkwood-openrd.dtsi

@@ -40,7 +40,7 @@ pinctrl: pin-controller@10000 {
 			pinctrl-0 = <&pmx_select28 &pmx_sdio_cd &pmx_select34>;
 			pinctrl-names = "default";
 
-			pmx_select28: pmx-select-uart-sd {
+			pmx_select28: pmx-select-rs232-rs484 {
 				marvell,pins = "mpp28";
 				marvell,function = "gpio";
 			};
@@ -48,7 +48,7 @@ pmx_sdio_cd: pmx-sdio-cd {
 				marvell,pins = "mpp29";
 				marvell,function = "gpio";
 			};
-			pmx_select34: pmx-select-rs232-rs484 {
+			pmx_select34: pmx-select-uart-sd {
 				marvell,pins = "mpp34";
 				marvell,function = "gpio";
 			};