dts: arm: st: u0: add dac node in dtsi file

all stm32u0 boards have only one and same
dac peripheral.

Signed-off-by: Fabrice DJIATSA <[email protected]>

Author: djiatsaf-st

dts/arm/st/u0/stm32u0.dtsi

@@ -209,6 +209,14 @@
 			status = "disabled";
 		};
 
+		dac1: dac@40007400 {
+			compatible = "st,stm32-dac";
+			reg = <0x40007400 0x400>;
+			clocks = <&rcc STM32_CLOCK_BUS_APB1 0x20000000>;
+			status = "disabled";
+			#io-channel-cells = <1>;
+		};
+
 		i2c1: i2c@40005400 {
 			compatible = "st,stm32-i2c-v2";
 			clock-frequency = <I2C_BITRATE_STANDARD>;