Add support for NCT6102D/6106D

Basic testing.

Note: Chip ID differs from Chip ID in datasheet.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add support for critical low/high temperature limits on NCT6106

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Fix REG_IN_MIN register and interrupt assignments

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