ARM: dts: msm: Add dpdm regulator and batterydata node to sm6150

Add batterydata node to sm6150 target. Add dpdm regulator support
to pm6150_charger and specify the vadc channels for the charger.
Enable step-charging and SW Jeita support.

Change-Id: I9aad9de79cd0ecbfba5ab17eed7dcfb7290091d1
Signed-off-by: Umang Agrawal <uagrawal@codeaurora.org>