[media] doc-rst: move framework docs to kAPI documentation

Those documentation are part of the kAPI one. Move to the right
place.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

Documentation/media/media_drivers.rst

@@ -17,6 +17,8 @@ License".
 .. toctree::
     :maxdepth: 5
 
+    kapi/v4l2-framework
+    kapi/v4l2-controls
     kapi/v4l2-core
     kapi/dtv-core
     kapi/rc-core