ramips: assign correct key-code to wps buttons

The ASUS WL-330N(3G) and the Edimax RG21S had the
reset keycode assigned to the WPS button. This patch
changes all three devices to use KEY_WPS_BUTTON in
the hopes that this fixes unwanted restarts/
unexpected behavior from the users point of view.

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

target/linux/ramips/dts/mt7621_edimax_rg21s.dts

@@ -39,7 +39,7 @@
 		wps {
 			label = "wps";
 			gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;
-			linux,code = <KEY_RESTART>;
+			linux,code = <KEY_WPS_BUTTON>;
 		};
 	};
 

target/linux/ramips/dts/rt3050_asus_wl-330n.dts

@@ -43,7 +43,7 @@
 		wps {
 			label = "wps";
 			gpios = <&gpio0 0 GPIO_ACTIVE_LOW>;
-			linux,code = <KEY_RESTART>;
+			linux,code = <KEY_WPS_BUTTON>;
 		};
 	};
 };

target/linux/ramips/dts/rt3050_asus_wl-330n3g.dts

@@ -48,7 +48,7 @@
 		wps {
 			label = "wps";
 			gpios = <&gpio0 0 GPIO_ACTIVE_LOW>;
-			linux,code = <KEY_RESTART>;
+			linux,code = <KEY_WPS_BUTTON>;
 		};
 	};
 };