staging:iio:dummy: Fix mismatch and export sysfs entry

Correct the mismatch bewteen calibscale and calibbias, and export
the in_accel_calibscale sysfs entry

Updated to apply to current tree.

Signed-off-by: Jin Feng <jin88.feng@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
1 file changed