ARM: dts: stm32: Enable pwm1 and pwm3 on stm32f429i-eval

Define and enable pwm1 and pwm3, timers1 & 3 trigger outputs on
on stm32f429i-eval board.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>

arch/arm/boot/dts/stm32429i-eval.dts

@@ -167,6 +167,34 @@ &rtc {
 	status = "okay";
 };
 
+&timers1 {
+	status = "okay";
+
+	pwm {
+		pinctrl-0 = <&pwm1_pins>;
+		pinctrl-names = "default";
+		status = "okay";
+	};
+
+	timer@0 {
+		status = "okay";
+	};
+};
+
+&timers3 {
+	status = "okay";
+
+	pwm {
+		pinctrl-0 = <&pwm3_pins>;
+		pinctrl-names = "default";
+		status = "okay";
+	};
+
+	timer@2 {
+		status = "okay";
+	};
+};
+
 &usart1 {
 	pinctrl-0 = <&usart1_pins_a>;
 	pinctrl-names = "default";