Battery: Add support for devices which doesn't report a valid battery status

Devices that doesn't report a real status at "/sys/class/power_supply/battery/status"
should overlay and disable config_supportBatteryStatus

Change-Id: I0a59707f94645d1a79e1fe3efa996aa913bb6c03
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>