temperature: allow hwmon-path-abs as array

[rtgiskard]

Currently, only hwmon-path is allowed to have multiple path, however the hwmon ID is not stable, for which hwmon-path-abs is better, but it's supposed to be a string. This commit extends hwmon-path-abs and make it works like hwmon-path.

[Alexays]

Thanks!
Can you update the github wiki?

[rtgiskard]

Thanks! Can you update the github wiki?

Just update by extend the type to string/array, might be enough