V4L/DVB (3355): removed uneeded init on structs like static int foo=0

- Static vars are equal to zero by default. Removed unnecessary =0 from them,
  saving some data space

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/btcx-risc.c b/drivers/media/video/btcx-risc.c
index a48de3c..b4aca72 100644
--- a/drivers/media/video/btcx-risc.c
+++ b/drivers/media/video/btcx-risc.c
@@ -37,7 +37,7 @@
 MODULE_AUTHOR("Gerd Knorr");
 MODULE_LICENSE("GPL");
 
-static unsigned int debug = 0;
+static unsigned int debug;
 module_param(debug, int, 0644);
 MODULE_PARM_DESC(debug,"debug messages, default is 0 (no)");