ARM: dts: imx27-pdk: Pass the UART1 pin configuration

Provide an entry for the UART1 pin muxing.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

arch/arm/boot/dts/imx27-pdk.dts

@@ -28,5 +28,20 @@
 
 &uart1 {
 	fsl,uart-has-rtscts;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1>;
 	status = "okay";
 };
+
+&iomuxc {
+	imx27-pdk {
+		pinctrl_uart1: uart1grp {
+			fsl,pins = <
+				MX27_PAD_UART1_TXD__UART1_TXD 0x0
+				MX27_PAD_UART1_RXD__UART1_RXD 0x0
+				MX27_PAD_UART1_CTS__UART1_CTS 0x0
+				MX27_PAD_UART1_RTS__UART1_RTS 0x0
+			>;
+		};
+	};
+};