V4L/DVB (8538): em28xx-cards: Add GrabBeeX+ USB2800 model

Added GrabBeeX+ USB2800 model (analog only)

[mchehab@infradead.org: Need to fix some merge conflicts]
Signed-off-by: Aron Szabo <aron@aron.ws>
Signed-off-by: Douglas Schilling Landgraf <dougsland@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/Documentation/video4linux/CARDLIST.em28xx b/Documentation/video4linux/CARDLIST.em28xx
index ef0c3dd..42be129 100644
--- a/Documentation/video4linux/CARDLIST.em28xx
+++ b/Documentation/video4linux/CARDLIST.em28xx
@@ -19,3 +19,4 @@
  18 -> Hauppauge WinTV HVR 900 (R2)             (em2880)        [2040:6502]
  19 -> PointNix Intra-Oral Camera               (em2860)
  20 -> AMD ATI TV Wonder HD 600                 (em2880)        [0438:b002]
+ 21 -> eMPIA Technology, Inc. GrabBeeX+ Video Encoder (em2800)        [eb1a:2801]