linux-wandboard

staging:iio: chan_spec - take extend_name constant.

I can't envision a case where this is not constant and we
don't seem to have any in tree, so lets clear up this loose
end.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>