[media] MAINTAINERS: fix drivers/media/usb/dvb-usb/cxusb*

This driver was never at dvb-usb-v2, as far as I could see.
Signed-off-by: NCesar Eduardo Barros <cesarb@cesarb.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

MAINTAINERS

@@ -2669,7 +2669,7 @@ W:	http://github.com/mkrufky
 Q:	http://patchwork.linuxtv.org/project/linux-media/list/
 T:	git git://linuxtv.org/media_tree.git
 S:	Maintained
-F:	drivers/media/usb/dvb-usb-v2/cxusb*
+F:	drivers/media/usb/dvb-usb/cxusb*
 
 DVB_USB_CYPRESS_FIRMWARE MEDIA DRIVER
 M:	Antti Palosaari <crope@iki.fi>