V4L/DVB (3820): Drivers/media/dvb/dvb-usb/: possible cleanups

- make the following needlessly global struct static:
  dvb-usb/cxusb.c: cxusb_mt352_config
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/dvb/dvb-usb/cxusb.c

@@ -373,7 +373,7 @@ static struct mt352_config cxusb_dee1601_config = {
 	.pll_set       = dvb_usb_pll_set,
 };
 
-struct mt352_config cxusb_mt352_config = {
+static struct mt352_config cxusb_mt352_config = {
 	/* used in both lgz201 and th7579 */
 	.demod_address = 0x0f,
 	.demod_init    = cxusb_mt352_demod_init,