ARM: S5PV210: Fix wrong EPLL rate getting on setup clocks

This patch fix wrong EPLL getting on setup clocks on S5PV210.

Signed-off-by: Seungwhan Youn <sw.youn@samsung.com>
Acked-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>