iio: adc: ti-ads7950: use SPDX-License-Identifier

This updates the ti-ads7950.c file to use SPDX-License-Identifier
instead of more verbose license text.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
David Lechner 2018-07-21 14:37:33 -05:00 • committed by Jonathan Cameron
commit 7d7209f0c4