power: smb5: Implement charge termination WA

Currently post charge termination, if the charger switches to BSM
mode, then there exist a possibility of battery being overcharged.
This is due to finite delay in opening of BATFET post its requirement
to stay in BSM mode, allowing charge current to leak into the battery,
resulting in over charge.

Add a SW WA to suspend input, once cc_soc increases beyond a certain
threshold post termination.

Change-Id: I6c1966bb69445c89bc29b099ab9adf2d5f3e2334
Signed-off-by: Umang Agrawal <uagrawal@codeaurora.org>