V4L/DVB (12587): Add support BeholdTV X7 card

Add support our new TV card based on xc5000 and saa7134.
Analog TV works well.

Signed-off-by: Beholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/saa7134/saa7134.h b/drivers/media/video/saa7134/saa7134.h
index 7bba446..caefbf0 100644
--- a/drivers/media/video/saa7134/saa7134.h
+++ b/drivers/media/video/saa7134/saa7134.h
@@ -294,6 +294,7 @@
 #define SAA7134_BOARD_BEHOLD_609RDS_MK5     168
 #define SAA7134_BOARD_VIDEOMATE_S350        169
 #define SAA7134_BOARD_AVERMEDIA_STUDIO_505  170
+#define SAA7134_BOARD_BEHOLD_X7             171
 
 #define SAA7134_MAXBOARDS 32
 #define SAA7134_INPUT_MAX 8