media: docs: brainless mass add SPDX headers to all media files
All Documentation files outside the uAPI are all licensed with,
at least, GPL 2.0. So, mark them as such.
The ondes at media/uapi are at least GFDL 1.1+.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
diff --git a/Documentation/media/kapi/v4l2-tuner.rst b/Documentation/media/kapi/v4l2-tuner.rst
index 86e8946..e6caa33 100644
--- a/Documentation/media/kapi/v4l2-tuner.rst
+++ b/Documentation/media/kapi/v4l2-tuner.rst
@@ -1,3 +1,5 @@
+.. SPDX-License-Identifier: GPL-2.0
+
Tuner functions and data structures
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^