V4L/DVB (3305): Added support for the ADS Instant TV DUO Cardbus PTV331

Analog and DVB-T are working, Remote not yet.
This card is based on the new LifeView design, there should be many variants.

Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/Documentation/video4linux/CARDLIST.saa7134 b/Documentation/video4linux/CARDLIST.saa7134
index 1823e4ce..ee1618d 100644
--- a/Documentation/video4linux/CARDLIST.saa7134
+++ b/Documentation/video4linux/CARDLIST.saa7134
@@ -85,3 +85,4 @@
  84 -> LifeView FlyDVB Trio                     [5168:0319]
  85 -> AverTV DVB-T 777                         [1461:2c05]
  86 -> LifeView FlyDVB-T                        [5168:0301]
+ 87 -> ADS Instant TV Duo Cardbus PTV331        [0331:1421]