hwmon: (aquacomputer_d5next) Add support for Octo flow sensor

Add support for reading the flow sensor value on
the Aquacomputer Octo. Implemented by David Flemstrom [1].

[1] https://github.com/aleksamagicka/aquacomputer_d5next-hwmon/pull/95



Originally-from: David Flemstrom <david.flemstrom@gmail.com>
Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com>
Link: https://lore.kernel.org/r/20240417175037.32499-2-savicaleksa83@gmail.com


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