dt-bindings: power: supply: move maxim,max14656.txt to proper location

This moves maxim,max14656.txt to proper location for
power-supply bindings.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>

diff --git a/Documentation/devicetree/bindings/power_supply/maxim,max14656.txt b/Documentation/devicetree/bindings/power/supply/maxim,max14656.txt
similarity index 100%
rename from Documentation/devicetree/bindings/power_supply/maxim,max14656.txt
rename to Documentation/devicetree/bindings/power/supply/maxim,max14656.txt