arm64: dts: mediatek: mt7987-bpi-r4lite: fix switch polarity

based on this discussion
https://patchwork.kernel.org/project/linux-mediatek/patch/[email protected]/#26682224
mt7531 reset pin is always active-low. change accordingly.

Author: frank-w

arch/arm64/boot/dts/mediatek/mt7987a-bananapi-bpi-r4-lite.dts

@@ -9,6 +9,7 @@
 #include "mt7987a.dtsi"
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/leds/common.h>
+#include <dt-bindings/gpio/gpio.h>
 #include "mt7987a-bananapi-bpi-r4-lite-mikrobus.dtsi"
 
 / {
@@ -215,7 +216,7 @@
 	switch31: switch@31 {
 		compatible = "mediatek,mt7531";
 		reg = <31>;
-		reset-gpios = <&pio 42 0>;
+		reset-gpios = <&pio 42 GPIO_ACTIVE_LOW>;
 		status = "okay";
 	};
 };