[media] DocBook: Document the DVB API devnodes at the media controller

The DVB API is actually several different APIs bundled together, each
using its own device node.

Fix the media controller DVB API to actually reflect what's there at the
DVB subsystem.
Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>

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

@@ -181,8 +181,24 @@
 	    <entry>ALSA card</entry>
 	  </row>
 	  <row>
-	    <entry><constant>MEDIA_ENT_T_DEVNODE_DVB</constant></entry>
-	    <entry>DVB card</entry>
+	    <entry><constant>MEDIA_ENT_T_DEVNODE_DVB_FE</constant></entry>
+	    <entry>DVB frontend devnode</entry>
+	  </row>
+	  <row>
+	    <entry><constant>MEDIA_ENT_T_DEVNODE_DVB_DEMUX</constant></entry>
+	    <entry>DVB demux devnode</entry>
+	  </row>
+	  <row>
+	    <entry><constant>MEDIA_ENT_T_DEVNODE_DVB_DVR</constant></entry>
+	    <entry>DVB DVR devnode</entry>
+	  </row>
+	  <row>
+	    <entry><constant>MEDIA_ENT_T_DEVNODE_DVB_CA</constant></entry>
+	    <entry>DVB CAM devnode</entry>
+	  </row>
+	  <row>
+	    <entry><constant>MEDIA_ENT_T_DEVNODE_DVB_NET</constant></entry>
+	    <entry>DVB network devnode</entry>
 	  </row>
 	  <row>
 	    <entry><constant>MEDIA_ENT_T_V4L2_SUBDEV</constant></entry>

Documentation/DocBook/media/v4l/v4l2.xml

@@ -156,7 +156,7 @@ applications. -->
 	<revnumber>3.21</revnumber>
 	<date>2015-02-13</date>
 	<authorinitials>mcc</authorinitials>
-	<revremark>Fix documentation for media controller device nodes.
+	<revremark>Fix documentation for media controller device nodes and add support for DVB device nodes.
 	</revremark>
       </revision>
       <revision>