msm: qpnp-power-on: update PMIC reset configuration logic

Add an option to configure the PMIC for shutdown when requested
for hard_reset. This configuration may be required on secondary
PMIC's to avoid lockups during reset.

Change-Id: Ib387aab40fc60a2e2de10088c0171a087bf809d4
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>