ARM: dts: exynops4210: really add universal_c210 dts

I fumbled when resolving a merge conflict on application of commit
765d012c (ARM: dts: exynos4210: Add basic dts file for universal_c210
board), and left out the dts source file. Here it is.

Signed-off-by: Olof Johansson <olof@lixom.net>