drivers: power: Increase AC max current from 900mA to 1.2A

Signed-off-by: Sultanxda <sultanxda@gmail.com>
drivers: power: Determine charge mode from actual cable type

CHG_MODE_UNKNOWN is now detected as CHG_MODE_AC, so remove it.

Signed-off-by: Sultanxda <sultanxda@gmail.com>
smb328a_charger: Remove CHG_MODE_UNKNOWN

CHG_MODE_UNKNOWN is detected as CHG_MODE_AC instead.

Signed-off-by: Sultanxda <sultanxda@gmail.com>
drivers: power: Enable 1200mA charge current over USB

Signed-off-by: Sultanxda <sultanxda@gmail.com>