ARM: dts: imx6qdl-gw59{10,13}: fix user pushbutton GPIO offset

The GW5910 and GW5913 have a user pushbutton that is tied to the
Gateworks System Controller GPIO offset 2. Fix the invalid offset of 0.

Fixes: 64bf0a0a ("ARM: dts: imx6qdl-gw: add Gateworks System Controller support")
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6qdl-gw5910.dtsi

@@ -29,7 +29,7 @@ gpio-keys {
 
 		user-pb {
 			label = "user_pb";
-			gpios = <&gsc_gpio 0 GPIO_ACTIVE_LOW>;
+			gpios = <&gsc_gpio 2 GPIO_ACTIVE_LOW>;
 			linux,code = <BTN_0>;
 		};
 

arch/arm/boot/dts/imx6qdl-gw5913.dtsi

@@ -26,7 +26,7 @@ gpio-keys {
 
 		user-pb {
 			label = "user_pb";
-			gpios = <&gsc_gpio 0 GPIO_ACTIVE_LOW>;
+			gpios = <&gsc_gpio 2 GPIO_ACTIVE_LOW>;
 			linux,code = <BTN_0>;
 		};