[media] az6007: Comment the gate_ctl mutex

The mutex is there to protect the I2C gate. However, for some reason,
it is being called twice:

[ 2103.542796] usbcore: registered new interface driver dvb_usb_az6007
[ 2103.772392] az6007: drxk_gate_ctrl: enable
[ 2103.793900] az6007: drxk_gate_ctrl: enable

For now, let's just comment, to allow the driver to run.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/dvb-usb/az6007.c

@@ -52,7 +52,7 @@ static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
 	struct az6007_device_state *st;
 	int status;
 
-	info("%s", __func__);
+	info("%s: %s", __func__, enable? "enable" : "disable" );
 
 	if (!adap)
 		return -EINVAL;
@@ -64,10 +64,14 @@ static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
 
 
 	if (enable) {
+#if 0
 		down(&st->pll_mutex);
+#endif
 		status = st->gate_ctrl(fe, 1);
 	} else {
+#if 0
 		status = st->gate_ctrl(fe, 0);
+#endif
 		up(&st->pll_mutex);
 	}
 	return status;