[media] vp702x: get rid of warning: no previous prototype

drivers/media/usb/dvb-usb/vp702x.c:70:5: warning: no previous prototype for 'vp702x_usb_out_op_unlocked' [-Wmissing-prototypes]
drivers/media/usb/dvb-usb/vp702x.c:89:5: warning: no previous prototype for 'vp702x_usb_out_op' [-Wmissing-prototypes]
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/usb/dvb-usb/vp702x.c

@@ -67,8 +67,8 @@ int vp702x_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value,
 	return ret;
 }
 
-int vp702x_usb_out_op_unlocked(struct dvb_usb_device *d, u8 req, u16 value,
-				      u16 index, u8 *b, int blen)
+static int vp702x_usb_out_op_unlocked(struct dvb_usb_device *d, u8 req,
+				      u16 value, u16 index, u8 *b, int blen)
 {
 	int ret;
 	deb_xfer("out: req. %02x, val: %04x, ind: %04x, buffer: ",req,value,index);
@@ -86,7 +86,7 @@ int vp702x_usb_out_op_unlocked(struct dvb_usb_device *d, u8 req, u16 value,
 		return 0;
 }
 
-int vp702x_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value,
+static int vp702x_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value,
 			     u16 index, u8 *b, int blen)
 {
 	int ret;