ARM: dts: stm32: Enable thermal sensor support on stm32mp15xx-dhcor

Enable STM32 Digital Thermal Sensor driver for stm32mp15xx-dhcor SoMs.

Fixes: 94cafe1b6482 ("ARM: dts: stm32: Add Avenger96 devicetree support based on STM32MP157A")
Signed-off-by: Marek Vasut <[e-mail]>
Cc: Alexandre Torgue <[e-mail]>
Cc: Manivannan Sadhasivam <[e-mail]>
Cc: [e-mail]
To: [e-mail]
Reviewed-by: Manivannan Sadhasivam <[e-mail]>
Signed-off-by: Alexandre Torgue <[e-mail]>

arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi

···
 	};
 };
 
+&dts {
+	status = "okay";
+};
+
 &i2c4 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c4_pins_a>;