ARM: dts: stm32: add I2C3 support on STM32F429 SoC

This patch adds I2C3 instances of the STM32F429 SoC
Signed-off-by: dillon min <dillon.minfei@gmail.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

arch/arm/boot/dts/stm32f429.dtsi

@@ -402,6 +402,18 @@ i2c1: i2c@40005400 {
 			status = "disabled";
 		};
 
+		i2c3: i2c@40005c00 {
+			compatible = "st,stm32f4-i2c";
+			reg = <0x40005c00 0x400>;
+			interrupts = <72>,
+				     <73>;
+			resets = <&rcc STM32F4_APB1_RESET(I2C3)>;
+			clocks = <&rcc 0 STM32F4_APB1_CLOCK(I2C3)>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
 		dac: dac@40007400 {
 			compatible = "st,stm32f4-dac-core";
 			reg = <0x40007400 0x400>;