hwmon: (pmbus/max20730) Add max20710 support

Add support for max20710 into the existing max20730 driver.

Signed-off-by: Ugur Usug <ugur.usug@maximintegrated.com>
Link: https://lore.kernel.org/r/BYAPR11MB317423C13909AE6F1913BBD7FD9C0@BYAPR11MB3174.namprd11.prod.outlook.com


[groeck: Fixed various whitespace errors]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>