ARM: dts: vf500: Remove the zero length reg property

All the vf500 based boards include the real memory size in their
dts files, so remove the zero length reg property.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/vf500.dtsi

@@ -47,7 +47,7 @@ / {
 	#size-cells = <1>;
 	chosen { };
 	aliases { };
-	memory { device_type = "memory"; reg = <0 0>; };
+	memory { device_type = "memory"; };
 
 	cpus {
 		#address-cells = <1>;