All those new files I added are under GPL v2.0 license.
Add the corresponding SPDX headers to them.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This is actually a subsystem description, with contains both
kAPI and uAPI.
While it should ideally be slplit, let's place it at driver-api,
as most things are related to kAPI and driver-specific info.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>