Update EXYNOS5 device tree source files for EXYNOS5250 SoC.
This includes new additions to the EXYNOS5 dtsi and SMDK5250
dts files and few minor fixes.
Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>