ARM: tegra: Remove stray #reset-cells property

The Ouya board specifies the #reset-cells property for the GPIO
controller. Since the GPIO controller doesn't provide reset controls
this is not needed, so they can be dropped.
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm/boot/dts/tegra30-ouya.dts

@@ -70,7 +70,6 @@ hdmi@54280000 {
 
 	gpio: gpio@6000d000 {
 		gpio-ranges = <&pinmux 0 0 248>;
-		#reset-cells = <1>;
 	};
 
 	pinmux@70000868 {