media: dib0700: add code comment

Add FIXME code comment:
/* FIXME: check if it is fe_adap[1] */

It is likely that it should be adap->fe_adap[1].fe in the second clause,
but this has never been verified.
Suggested-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/usb/dvb-usb/dib0700_devices.c

@@ -1745,6 +1745,7 @@ static int dib809x_tuner_attach(struct dvb_usb_adapter *adap)
 		if (dvb_attach(dib0090_register, adap->fe_adap[0].fe, tun_i2c, &dib809x_dib0090_config) == NULL)
 			return -ENODEV;
 	} else {
+		/* FIXME: check if it is fe_adap[1] */
 		if (dvb_attach(dib0090_register, adap->fe_adap[0].fe, tun_i2c, &dib809x_dib0090_config) == NULL)
 			return -ENODEV;
 	}