dt-bindings: hwmon: adm1275: add adm1281

Add support for the adm1281 Hot-Swap Controller and Digital Power
and Energy Monitor

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Jose Ramon San Buenaventura <jose.sanbuenaventura@analog.com>
Link: https://lore.kernel.org/r/20240425070948.25788-2-jose.sanbuenaventura@analog.com


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