[powersavemode] Do not trigger psm during mce startup. JB#43843
[powersavemode] Do not trigger psm during mce startup. JB#43843

Booting device / restarting mce while charger is connected can cause
power save mode to get briefly activated while charger status is not
known.

Do not activate PSM while charger status is not known.

Do not disable forced-PSM setting if charger status makes
transition from "undefined" to "on" state.

Signed-off-by: Simo Piiroinen <6d5e5360bed3d486f7d9fb26b0f737f7d4fd45ee@jollamobile.com>

spiiroin/mce,spiiroin/mce,spiiroin/mce,spiiroin/mce