power: smb5: Add toggle stat pin logic to toggle_stat property

To prevent ILIM IRQ failure, toggle the stat pin to reset 1390
using the toggle_stat property of the main power supply.

CRs-Fixed: 2200340

Change-Id: I59e4b5f87ccdd187ef1ea531afe70ba805df3358
Signed-off-by: Umang Agrawal <uagrawal@codeaurora.org>
Signed-off-by: Harry Yang <harryy@codeaurora.org>