[media] v4l2-ctrls.h: add to device-drivers DocBook

The comments there are using a wrong format. Due to that,
DocBook were unable to parse it.

Fix the tags format, and add it to device-drivers.xml.
Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: NJonathan Corbet <corbet@lwn.net>

Documentation/DocBook/device-drivers.tmpl

@@ -231,17 +231,13 @@ X!Isound/sound_firmware.c
 !Idrivers/media/dvb-core/dvb_frontend.h
 !Idrivers/media/dvb-core/dvb_math.h
 !Idrivers/media/dvb-core/dvb_ringbuffer.h
+!Iinclude/media/v4l2-ctrls.h
 <!-- FIXME: Removed for now due to document generation inconsistency
-X!Iinclude/media/v4l2-ctrls.h
 X!Iinclude/media/v4l2-dv-timings.h
 X!Iinclude/media/v4l2-event.h
 X!Iinclude/media/v4l2-mediabus.h
 X!Iinclude/media/videobuf2-memops.h
 X!Iinclude/media/videobuf2-core.h
-X!Iinclude/media/lirc.h
-X!Edrivers/media/dvb-core/dvb_demux.c
-X!Idrivers/media/dvb-core/dvbdev.h
-X!Edrivers/media/dvb-core/dvb_net.c
 -->
 
   </chapter>