ARM: mx5: Add CAN1 pinctrl data

This patch adds pinctrl data for different mux of CAN1 on MX53.
Signed-off-by: NMarek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx53.dtsi

@@ -449,6 +449,13 @@
 							MX53_PAD_KEY_ROW2__CAN1_RXCAN 0x80000000
 						>;
 					};
+
+					pinctrl_can1_3: can1grp-3 {
+						fsl,pins = <
+							MX53_PAD_GPIO_7__CAN1_TXCAN	0x80000000
+							MX53_PAD_GPIO_8__CAN1_RXCAN	0x80000000
+						>;
+					};
 				};
 
 				can2 {