power_supply: Add additional USB Type-C properties

Introduce the power_supply_typec_mode enum definitions which
will allow a charger to indicate the type of USB Type-C
connection that is established. Also add additional properties
for indicating CC pin orientation, changing source/sink power
role (useful for dynamic power role swap), and a flag to allow
the charger to expect VBUS changes during USB Power Delivery
power negotiation.

Change-Id: Iba9b652335fba4ee4f24a17eba8abdd5c85c21bb
Signed-off-by: Jack Pham <jackp@codeaurora.org>