arm64: dts: qcom: msm8939-asus-z00t: add hall sensor

This device uses ANPEC APX9131 hall sensor. It is a basic GPIO hall
sensor for which a generic "gpio-keys" device tree node configuration
suffices.

Signed-off-by: Erikas Bitovtas <[email protected]>

Author: erikas9987

arch/arm64/boot/dts/qcom/msm8939-asus-z00t.dts

@@ -49,6 +49,8 @@
 		pinctrl-0 = <&gpio_hall_sensor_default>;
 		pinctrl-names = "default";
 
+		label = "GPIO Hall Effect Sensor";
+
 		event-hall-sensor {
 			label = "Hall Effect Sensor";
 			gpios = <&tlmm 108 GPIO_ACTIVE_LOW>;