ARM: dts: add devicetree support for s3c2416-smdk2416

Definitions in s3c24xx.dtsi are usable for all s3c24xx
SoCs, but some need to be extended with proper compatible
properties, as can be seen in s3c2416.dtsi.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>