hwmon: (ina2xx) Make it easier to add more devices
* Make sysfs entries documentation easier to maintain.
* Use multi-line enum.
* Correct "has_power_average" comment.
Create a new "has_update_interval" member for chips which support
averaging.
Signed-off-by: Ian Ray <ian.ray@gehealthcare.com>
Reviewed-by: Bence Csókás <bence98@sch.bme.hu> # v2
Tested-by: Jens Almer <bagawk@gmail.com>
Link: https://lore.kernel.org/r/20260220112024.97446-3-ian.ray@gehealthcare.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>