The STEP_UP_TIME and STEP_DOWN_TIME registers are swapped for all chips but
NCT6775.
Reported-by: NGrazvydas Ignotas <notasas@gmail.com>
Reviewed-by: NJean Delvare <jdelvare@suse.de>
Cc: stable@vger.kernel.org # v3.10+
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>