ARM: S5PV310: Add SMDKC210 board support file

This patch adds Samsung SMDKC210 board support file. The SoC
of SMDKC210, S5PC210(MCP) is one of package option of S5PV310.
And because composition of SMDKC210 and SMDKV310 differs, need
SMDKC210 with SMDKV310.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>