qpnp-fg-gen3: Add support to configure auto recharge voltage

Auto recharge happens when the charging is complete and the
battery SOC or voltage had dropped below certain threshold.
Along with having an option to configure recharge SOC threshold,
a way to configure recharge voltage threshold is required. Add
it. By default, charger is configured to resume charging only
based on the signal from FG based on battery voltage.

Change-Id: I0cd6ca6679c19bbdf4ad980a22d9976396028316
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>