boards: arm: stm32f411e_disco: Fix button level

Fixes the button to have the correct polarity for when it is
pressed.

Signed-off-by: Jamie McCrae <[email protected]>

Author: nordicjm

boards/arm/stm32f411e_disco/stm32f411e_disco.dts

@@ -62,7 +62,7 @@
 		compatible = "gpio-keys";
 		user_button: button {
 			label = "User";
-			gpios = <&gpioa 0 GPIO_ACTIVE_LOW>;
+			gpios = <&gpioa 0 GPIO_ACTIVE_HIGH>;
 			zephyr,code = <INPUT_KEY_0>;
 		};
 	};