ARM: dts: cm-t3x: add I2C1 pinmux

Add missing I2C1 pinmux setup.
Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap3-cm-t3x.dtsi

@@ -137,6 +137,13 @@ OMAP3_CORE1_IOPAD(0x21cc, PIN_INPUT | MUX_MODE0)	/* mcspi1_somi */
 			OMAP3_CORE1_IOPAD(0x21ce, PIN_INPUT_PULLDOWN | MUX_MODE0) /* mcspi1_cs0 */
 		>;
 	};
+
+	i2c1_pins: pinmux_i2c1_pins {
+		pinctrl-single,pins = <
+			OMAP3_CORE1_IOPAD(0x21ba, PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c1_scl */
+			OMAP3_CORE1_IOPAD(0x21bc, PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c1_sda */
+		>;
+	};
 };
 
 &uart3 {
@@ -155,6 +162,9 @@ &mmc3 {
 };
 
 &i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
+
 	clock-frequency = <400000>;
 
 	at24@50 {