Clock: Second Clock from Provision Team (1/2)
Clock: use mCalendar to get seconds

We haz teh calendar already. No need to create a new one to get the seconds.

Change-Id: Iccfc6e25367ad57a99bf27c29311e260b5e276d8
Signed-off-by: Tianrui Guo <tianrui@pac-rom.com>