g2:  enable booting modem for charger

Because msm8974 need modem for XO shutdown, enable booting modem for charger.

Signed-off-by: houst0nn <houstonn@gmail.com>

Change-Id: If4e95b451c2d7e3de6728330e80dafc49d9fbad4
Merge "g2:  enable booting modem for charger" into kk44