power: qpnp-fg-gen3: Adjust ki_coeff_full_soc dynamically

When the battery temperature goes below -10 C, SOC may get stuck
to 100%. This is due to the SOC full loop adjusting down with
very high battery impedance. To mitigate this, SOC full loop has
to be frozen. Add support for it by adjusting ki_coeff_full_soc
dynamically based on battery temperature.

Change-Id: I6218568712b025bc4427770bf86d142d50f40c7b
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>