ARM: S5P: Remove redundant selection PLAT_S5P for S5PC100, S5PV210 and S5PV310

The selection PLAT_S5P is selected with plat-s5p/Kconfig.
So remove it form each CPU_S5PXXXX config.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
[kgene.kim@samsung.com: edited title]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
3 files changed