dts: arm: st: u3: add wwdg and iwdg

Add WWDG snd IWDG support to STM32U3

Signed-off-by: Khaoula Bidani <khaoula.bidani-ext@st.com>

Author: kbidani

dts/arm/st/u3/stm32u3.dtsi

@@ -363,6 +363,20 @@
 			interrupts = <99 0>;
 			status = "disabled";
 		};
+
+		iwdg: watchdog@40003000 {
+			compatible = "st,stm32-watchdog";
+			reg = <0x40003000 0x400>;
+			status = "disabled";
+		};
+
+		wwdg: watchdog@40002c00 {
+			compatible = "st,stm32-window-watchdog";
+			reg = <0x40002c00 0x400>;
+			clocks = <&rcc STM32_CLOCK(APB1, 11)>;
+			interrupts = <0 0>;
+			status = "disabled";
+		};
 	};
 };