FIX: Enable module support by fixing functions

Some functions need to be renamed in regards to battery in order for module support to be enabled.

Signed-off-by: binkybear <binkybear@nethunter.com>
Add default defconfig file

Signed-off-by: binkybear <binkybear@nethunter.com>
Enable module support defconfig

Signed-off-by: binkybear <binkybear@nethunter.com>