dt-bindings: hwmon/pmbus: Add ti,lm25066 power-management IC

Signed-off-by: Zev Weiss <zev@bewilderbeest.net>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210928092242.30036-9-zev@bewilderbeest.net


Signed-off-by: Guenter Roeck <linux@roeck-us.net>