V4L/DVB (7647): Add support for the Hauppauge HVR-1700 digital mode

This adds support for DVB-T mode only, analog is not supported.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/Documentation/video4linux/CARDLIST.cx23885 b/Documentation/video4linux/CARDLIST.cx23885
index 3e9e999..b057a3c 100644
--- a/Documentation/video4linux/CARDLIST.cx23885
+++ b/Documentation/video4linux/CARDLIST.cx23885
@@ -6,3 +6,4 @@
   5 -> Hauppauge WinTV-HVR1500Q                            [0070:7790,0070:7797]
   6 -> Hauppauge WinTV-HVR1500                             [0070:7710,0070:7717]
   7 -> Hauppauge WinTV-HVR1200                             [0070:71d1]
+  8 -> Hauppauge WinTV-HVR1700                             [0070:8101]