imx:mx6sl add I2c pad settings

A few pad settings are I2C1

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
diff --git a/arch/arm/include/asm/arch-mx6/mx6sl_pins.h b/arch/arm/include/asm/arch-mx6/mx6sl_pins.h
index 9ded3d8..0475203 100644
--- a/arch/arm/include/asm/arch-mx6/mx6sl_pins.h
+++ b/arch/arm/include/asm/arch-mx6/mx6sl_pins.h
@@ -58,5 +58,10 @@
 
 	MX6_PAD_KEY_COL4__USB_USBOTG1_PWR			= IOMUX_PAD(0x0484, 0x017C, 6, 0x0000, 0, 0),
 	MX6_PAD_KEY_COL5__USB_USBOTG2_PWR			= IOMUX_PAD(0x0488, 0x0180, 6, 0x0000, 0, 0),
+
+	MX6_PAD_I2C1_SDA__I2C1_SDA				= IOMUX_PAD(0x0450, 0x0160, 0x10, 0x0720, 2, 0),
+	MX6_PAD_I2C1_SDA__GPIO_3_13				= IOMUX_PAD(0x0450, 0x0160, 5, 0x0000, 0, 0),
+	MX6_PAD_I2C1_SCL__I2C1_SCL				= IOMUX_PAD(0x044C, 0x015C, 0x10, 0x071C, 2, 0),
+	MX6_PAD_I2C1_SCL__GPIO_3_12				= IOMUX_PAD(0x044C, 0x015C, 5, 0x0000, 0, 0),
 };
 #endif	/* __ASM_ARCH_MX6_MX6SL_PINS_H__ */