ARM: dts: exynos: Remove redundant interrupt properties in gpio-keys on Odroid boards

GPIO keys don't need interrupt property. Interrupt number can be derived
directly from the GPIO pin definition, so remove redundant 'interrupts'
and 'interrupt-parent' properties from gpio-keys nodes on
Exynos4412-based Odroid boards.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

arch/arm/boot/dts/exynos4412-odroid-common.dtsi

@@ -31,8 +31,6 @@ gpio_keys {
 		pinctrl-0 = <&gpio_power_key>;
 
 		power_key {
-			interrupt-parent = <&gpx1>;
-			interrupts = <3 IRQ_TYPE_NONE>;
 			gpios = <&gpx1 3 GPIO_ACTIVE_LOW>;
 			linux,code = <KEY_POWER>;
 			label = "power key";

arch/arm/boot/dts/exynos4412-odroidx.dts

@@ -43,8 +43,6 @@ gpio_keys {
 		pinctrl-0 = <&gpio_power_key &gpio_home_key>;
 
 		home_key {
-			interrupt-parent = <&gpx2>;
-			interrupts = <2 IRQ_TYPE_NONE>;
 			gpios = <&gpx2 2 GPIO_ACTIVE_HIGH>;
 			linux,code = <KEY_HOME>;
 			label = "home key";