[media] DocBook: Update DVB supported standards at introduction

The list of standards at the media docbook is incomplete, and it
is mentioning that the DVB-S2 & friends is "currently being updated".
That's wrong, as such update occurred back in 2008.

So, provide a more complete list of supported standards and add
a reference to the actual list.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Documentation/DocBook/media_api.tmpl

@@ -67,8 +67,9 @@
 		API used for digital TV and Internet reception via one of the
 		several digital tv standards. While it is called as DVB API,
 		in fact it covers several different video standards including
-		DVB-T, DVB-S, DVB-C and ATSC. The API is currently being updated
-		to document support also for DVB-S2, ISDB-T and ISDB-S.</para>
+		DVB-T/T2, DVB-S/S2, DVB-C, ATSC, ISDB-T, ISDB-S,etc. The complete
+		list of supported standards can be found at
+		<xref linkend="fe-delivery-system-t" />.</para>
 	<para>The third part covers the Remote Controller API.</para>
 	<para>The fourth part covers the Media Controller API.</para>
 	<para>For additional information and for the latest development code,