Staging: iio: Remove line over 80 characters

Rename variable in order to fix the 80 characters per line warning.
Found by checkpatch.pl

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1 file changed