[PATCH] v4l: 717: added scripts and cardlist for em2820

- Added scripts and CARDLIST for em2820.
Signed-off-by: NMauro Carvalho Chehab <mchehab@brturbo.com.br>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Documentation/video4linux/CARDLIST.em28xx

+  0 -> Terratec Cinergy 250 USB                            [0ccd:0036]
+  1 -> Pinnacle PCTV USB 2                                 [2304:0208]
+  2 -> Hauppauge WinTV USB 2                               [2040:4200]
+  3 -> MSI VOX USB 2.0                                     [eb1a:2820]