PWM timer, RTC, System Timer, and MCT can be used
for clock source.
This patch can only support PWM timer for clock source of S5P64X0
and S5PV210.

Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
X®ÎÂœ#x