V4L/DVB (9523): Increase number of BT8XX devices supported in a system

The BT8XX device driver currently only supports 16 such devices in a
system. This is too small for many surveillance applications. This
patch increases the number to 32.

Signed-off-by: Alan McIvor <alan.mcivor@reveal.co.nz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/bt8xx/bttvp.h b/drivers/media/video/bt8xx/bttvp.h
index b4d940b..199a4d2 100644
--- a/drivers/media/video/bt8xx/bttvp.h
+++ b/drivers/media/video/bt8xx/bttvp.h
@@ -459,7 +459,7 @@
 };
 
 /* our devices */
-#define BTTV_MAX 16
+#define BTTV_MAX 32
 extern unsigned int bttv_num;
 extern struct bttv bttvs[BTTV_MAX];