Merge changes Ifb5e9c26,I3ba91f8b,I82022aa4,Idc141e6b,I4f2ab278,Ie0a8dc51,I213b3618,Ie57d474f into msm-3.4
* changes:
power: pm8921-charger: round up vddmax adjustments
power: pm8921-bms: use termination battery resistance
power: pm8921-bms: increase/decrease UUC 1% at a time
power: pm8921-bms: limit voltage correction
power: pm8921-bms: backup average current along with shutdown soc
power: pm8921-bms: use rtc to get average current
power: pm8921-bms: fix ccadc accuracy
power: pm8921-bms: provide option to ignore shutdown soc