Merge changes I106f36e2,Ie74e9318,Ieb409721,I14c2f42d into msm-3.4

* changes:
  power: pm8921-bms: fix 0% soc reported when started with a charger
  power: pm8921-bms: remove forcing shutdown soc
  power: pm8921-bms: change OCV when scaling soc for charging
  power: pm8921-bms: charging curve adjustments