- clarify license version (it should be GPL 2.0)
- use SPDX header
Acked-by: NSekhar Nori <nsekhar@ti.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: NTejun Heo <tj@kernel.org>