Adds support for the bq24735 charger chipset. The bq24735 is a high-efficiency, synchronous battery charger. It allows control of the charging current, input current, and the charger voltage DAC's through SMBus. Signed-off-by: Darbha Sriharsha <[email protected]> Signed-off-by: Rhyland Klein <[email protected]> Thanks-to: Stephen Warren <[email protected]> Thanks-to: Thierry Reding <[email protected]> Thanks-to: Manish Badarkhe <[email protected]> Signed-off-by: Anton Vorontsov <[email protected]>