ARM: dts: AM33XX: Add default pinctrl binding for I2C device

Add pin control binding for I2C device nodes in all
board specific DT files (as per current usage),

EVM: Both i2c0 and i2c1
EVM-SK and Bone: Only i2c0

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Acked-by: Matt Porter <mporter@ti.com>
Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>
diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
index 5302f79..860630b 100644
--- a/arch/arm/boot/dts/am335x-bone.dts
+++ b/arch/arm/boot/dts/am335x-bone.dts
@@ -36,6 +36,13 @@
 				0x60 0x17	/* gpmc_a8.gpio1_24, OUTPUT_PULLUP | MODE7 */
 			>;
 		};
+
+		i2c0_pins: pinmux_i2c0_pins {
+			pinctrl-single,pins = <
+				0x188 0x30	/* i2c0_sda.i2c0_sda PULLUP | INPUTENABLE | MODE0 */
+				0x18c 0x30	/* i2c0_scl.i2c0_scl PULLUP | INPUTENABLE | MODE0 */
+			>;
+		};
 	};
 
 	ocp {
@@ -44,6 +51,9 @@
 		};
 
 		i2c0: i2c@44e0b000 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&i2c0_pins>;
+
 			status = "okay";
 			clock-frequency = <400000>;