ARM: dts: s3c24xx: Fix unnecessary address/size cells DTC warnings

Fix DTC warnings:

    arch/arm/boot/dts/s3c2416-smdk2416.dtb: Warning (avoid_unnecessary_addr_size):
        /cpus: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property
    arch/arm/boot/dts/s3c2416-smdk2416.dtb: Warning (avoid_unnecessary_addr_size):
        /clocks: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>