dt-bindings: mfd: Add maxim,max77705

Add maxim,max77705 binding part, containing leds controller and haptics.
Charger and fuel gauge are separate device, thus not included.

Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Reviewed-by: "Rob Herring (Arm)" <robh@kernel.org>
Link: https://lore.kernel.org/r/20250123-starqltechn_integration_upstream-v17-2-8b06685b6612@gmail.com


Signed-off-by: Lee Jones <lee@kernel.org>