ARM: SAMSUNG: Remove unnecessary duplication of plat_data on TSADC

The default plat_data struct for TSADC is added in devs-ts.c
and duplication is removed from the following machines.

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>