[media] replace all occurrences of MEDIA_ENT_T_DEVNODE_V4L

Now that interfaces and entities are distinct, it makes no sense
of keeping something named as MEDIA_ENT_T_DEVNODE.

This change was done with this script:

	for i in $(git grep -l MEDIA_ENT_T|grep -v uapi/linux/media.h); do sed s,MEDIA_ENT_T_DEVNODE_V4L,MEDIA_ENT_T_V4L2_VIDEO, <$i >a && mv a $i; done

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Documentation/DocBook/media/v4l/media-ioc-enum-entities.xml

@@ -183,7 +183,7 @@
 	    <entry>Unknown device node</entry>
 	  </row>
 	  <row>
-	    <entry><constant>MEDIA_ENT_T_DEVNODE_V4L</constant></entry>
+	    <entry><constant>MEDIA_ENT_T_V4L2_VIDEO</constant></entry>
 	    <entry>V4L video, radio or vbi device node</entry>
 	  </row>
 	  <row>