power_supply: introduce properties for HVDCP 3P0

HVDCP 3P0 needs few properties implemented by USB power supply and
battery power supply for correct operation.

Create them along with helper functions to modify them.

Change-Id: Ia69ec459eea72703f530c7124f7cc579f4d4c423
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>