[media] cx23885: Add support for Hauppauge WinTV quadHD ATSC version

Add support for the Hauppauge WinTV quadHD ATSC version.
IR support has not been provided, all 4 tuners, demodulators etc are working.
Further documentation can be found on Linux TV wiki.

Signed-off-by: Stephen Backway <stev391@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

Documentation/media/v4l-drivers/cx23885-cardlist.rst

@@ -60,3 +60,4 @@ cx23885 cards list
 	 54 -> ViewCast 260e                                       [1576:0260]
 	 55 -> ViewCast 460e                                       [1576:0460]
 	 56 -> Hauppauge WinTV-QuadHD-DVB                          [0070:6a28,0070:6b28]
+	 57 -> Hauppauge WinTV-QuadHD-ATSC                         [0070:6a18,0070:6b18]