ath79: remap D-Link DIR-859 A1 WPS button to WPS

The WPS button was mapped to the restart/reset. This patch
changes it to emit the KEY_WPS_BUTTON keycode so pressing
the WPS button does initiate WPS.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>

target/linux/ath79/dts/qca9563_dlink_dir-859-a1.dts

@@ -50,7 +50,7 @@
 		compatible = "gpio-keys";
 
 		wps {
-			linux,code = <KEY_RESTART>;
+			linux,code = <KEY_WPS_BUTTON>;
 			gpios = <&gpio 1 GPIO_ACTIVE_LOW>;
 			debounce-interval = <60>;
 		};