Add support for different configurations of charger's registers so the
same driver could be used on other devices (e.g. MAX77843).
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski.k@gmail.com>
Acked-by: NMark Brown <broonie@kernel.org>
Signed-off-by: NMark Brown <broonie@kernel.org>