Merge pull request #355 from KurtE/Wire2

UnoQ: Add Wire2 to A4/A5 pins

Author: pennam

variants/arduino_uno_q_stm32u585xx/arduino_uno_q_stm32u585xx.overlay

@@ -28,6 +28,13 @@
 */
 };
 
+&i2c3 {
+	status = "okay";
+	pinctrl-0 = <&i2c3_scl_pc0 &i2c3_sda_pc1>;
+	pinctrl-names = "default"; 
+	clock-frequency = <I2C_BITRATE_FAST>;
+};
+
 /* clock from HSI48 */
 &mco1 {
 	status = "okay";
@@ -308,7 +315,7 @@
 					<&gpioc 0 0>;
 
 		serials = <&usart1>, <&lpuart1>;
-		i2cs = <&i2c2>, <&i2c4>;
+		i2cs = <&i2c2>, <&i2c4>, <&i2c3>;
 		spis = <&spi2>, <&spi3>;
 		/* PWM mapping for the digital pins  */
 		/* Currently only the pins marked with ~ on the pin headers are enabled */