ARM: dts: imx28-cfa10049: Remove unnecessary #address/#size-cells

Remove unnecessary #address-cells/#size-cells to fix the following
DTC warnings:

arch/arm/boot/dts/imx28-cfa10049.dtb: Warning (avoid_unnecessary_addr_size): /gpio_keys: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx28-cfa10049.dts

@@ -398,8 +398,6 @@ gpio_keys {
 		compatible = "gpio-keys";
 		pinctrl-names = "default";
 		pinctrl-0 = <&rotary_btn_pins_cfa10049>;
-		#address-cells = <1>;
-		#size-cells = <0>;
 
 		rotary_button {
 			label = "rotary_button";