V4L/DVB (6390): Updates missing entries at CARDLIST.em28xx

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

Documentation/video4linux/CARDLIST.em28xx

@@ -8,4 +8,7 @@
   7 -> Leadtek Winfast USB II                   (em2800)
   8 -> Kworld USB2800                           (em2800)
   9 -> Pinnacle Dazzle DVC 90                   (em2820/em2840) [2304:0207]
+ 10 -> Hauppauge WinTV HVR 900                  (em2880)
+ 11 -> Terratec Hybrid XS                       (em2880)
  12 -> Kworld PVR TV 2800 RF                    (em2820/em2840)
+ 13 -> Terratec Prodigy XS                      (em2880)