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>

1 files changed, 2 insertions, 0 deletions

diff --git a/Documentation/media/media_kapi.rst b/Documentation/media/media_kapi.rst
index 5e28289ee79e..1389998c90f7 100644
--- a/Documentation/media/media_kapi.rst
+++ b/Documentation/media/media_kapi.rst
@@ -1,3 +1,5 @@
+.. SPDX-License-Identifier: GPL-2.0
+
 .. include:: <isonum.txt>
 
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