sync with latest upstream version

Use devm_hwmon_device_register_with_groups() and sysfs_create_groups() if
possible.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add known problem about fan control settings after resume to README file

Fan control settings are not restored in a resume cycle.

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