hwmon: (aquacomputer_d5next) Add support for Aquacomputer Aquastream Ultimate

hwmon: (aquacomputer_d5next) Add support for Aquacomputer Aquastream Ultimate

Extend aquacomputer_d5next driver to expose various hardware sensors of the
Aquacomputer Aquastream Ultimate watercooling pump, which communicates
through a proprietary USB HID protocol.

Coolant temp and external temp sensor readings are available, along with
speed, power, voltage and current of both the pump and optionally connected
fan. It also exposes pressure and flow speed readings.

Additionally, serial number and firmware version are exposed through
debugfs.

Tested by a user on Github [1].

[1] https://github.com/aleksamagicka/aquacomputer_d5next-hwmon/issues/50

Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com>
Link: https://lore.kernel.org/r/20230203120324.579808-1-savicaleksa83@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>