[media] drivers/media/usb/dvb-usb/dib0700_core.c: fix left shift

Fix bug introduced in 7757ddda, where
instead of bit-negating the bitmask, the bit position was bit-negated
instead.
Signed-off-by: Nickolai Zeldovich <nickolai@csail.mit.edu>
Cc: Olivier Grenie <olivier.grenie@dibcom.fr>
Cc: Patrick Boettcher <patrick.boettcher@dibcom.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/usb/dvb-usb/dib0700_core.c

@@ -584,7 +584,7 @@ int dib0700_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
 		if (onoff)
 			st->channel_state |=	1 << (adap->id);
 		else
-			st->channel_state |=	1 << ~(adap->id);
+			st->channel_state &=  ~(1 << (adap->id));
 	} else {
 		if (onoff)
 			st->channel_state |=	1 << (adap->fe_adap[0].stream.props.endpoint-2);