V4L/DVB: Fix cx88 and em28xx cardlists

There are some missing entries there

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/Documentation/video4linux/CARDLIST.em28xx b/Documentation/video4linux/CARDLIST.em28xx
index 0c166ff..76c3908 100644
--- a/Documentation/video4linux/CARDLIST.em28xx
+++ b/Documentation/video4linux/CARDLIST.em28xx
@@ -70,3 +70,4 @@
  72 -> Gadmei UTV330+                           (em2861)
  73 -> Reddo DVB-C USB TV Box                   (em2870)
  74 -> Actionmaster/LinXcel/Digitus VC211A      (em2800)
+ 75 -> Dikom DK300                              (em2882)