ath79: fix button types for WZR-HP-AG300H and WZR-600DHP

Router and Movie "keys" are actually switches for both devices
according to the manual. This has been properly implemented in ar71xx,
but overlooked when porting to ath79.

Fixes: 480bf2827392 ("ath79: add support for Buffalo WZR-HP-AG300H")

Signed-off-by: Adrian Schmutzler <[email protected]>

target/linux/ath79/dts/ar7161_buffalo_wzr-hp-ag300h.dtsi

@@ -94,18 +94,21 @@
 
 		router_auto {
 			linux,code = <BTN_6>;
+			linux,input-type = <EV_SW>;
 			gpios = <&gpio 6 GPIO_ACTIVE_LOW>;
 			debounce-interval = <60>;
 		};
 
 		router_off {
 			linux,code = <BTN_5>;
+			linux,input-type = <EV_SW>;
 			gpios = <&gpio 7 GPIO_ACTIVE_LOW>;
 			debounce-interval = <60>;
 		};
 
 		movie_engine {
 			linux,code = <BTN_7>;
+			linux,input-type = <EV_SW>;
 			gpios = <&gpio 8 GPIO_ACTIVE_LOW>;
 			debounce-interval = <60>;
 		};