mako: charger: disable hsic host and mdm driver in charger mode

In off-mode charging, hsic host driver never release wake_lock.
Due to this, system cannot enter the suspend during off-mode
charging. This patch disable the hsic host driver and mdm
driver in off-mode charging to reduce power consumption.

Change-Id: I8580af1d5a9d754982b198c9bd47a98e4b69c725
power: charger: need sometime to handle the usb disconnecting events

When being completely charged in the offmode charging and pulling out TA
from sleep condition, I gave 1 sec. delay until entering sleep condition again,
in order to prevent the phenomenon that a device doesn't turn off.

We need sometime for an userspace application to handle the usb disconnection
events. There is no effect of power consumption.

Change-Id: I0851cc2b47c3780fd68d3e8965fd0d6f5b7e8312