hwmon: (adt7x10) Use hwmon_notify_event

The hwmon subsystem provides means of notifying userspace
about events. Use it.

Signed-off-by: Cosmin Tanislav <cosmin.tanislav@analog.com>
Link: https://lore.kernel.org/r/20211221215841.2641417-8-demonsingur@gmail.com


[groeck: Pass hwmon device to interrupt handler]
Tested-by: Cosmin Tanislav <cosmin.tanislav@analog.com>
Reviewed-by: Cosmin Tanislav <cosmin.tanislav@analog.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>