ARM: mx5: Add I2C1 pinctrl data

This patch adds pinctrl data for different mux of I2C1 on MX53.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx53.dtsi

@@ -474,6 +474,13 @@ MX53_PAD_CSI0_DAT8__I2C1_SDA 0xc0000000
 							MX53_PAD_CSI0_DAT9__I2C1_SCL 0xc0000000
 						>;
 					};
+
+					pinctrl_i2c1_2: i2c1grp-2 {
+						fsl,pins = <
+							MX53_PAD_EIM_D21__I2C1_SCL	0xc0000000
+							MX53_PAD_EIM_D28__I2C1_SDA	0xc0000000
+						>;
+					};
 				};
 
 				i2c2 {