power_supply: Define Binding for power-supplies

This property is meant to be used in device nodes which represent
power_supply devices that wish to provide a list of supplies which
provide them power, such as a battery listing its chargers.

Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>

diff --cc Documentation/devicetree/bindings/power_supply/power_supply.txt
Simple merge