net: fix dcbnl_setnumtcs operation check

dcbml_setnumtcs wasn't checking for the presence of the setnumtcs
function.  Instead, it was checking for setstate which was a bug.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Eric W Multanen <eric.w.multanen@intel.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/dcb/dcbnl.c

@@ -469,7 +469,7 @@ static int dcbnl_setnumtcs(struct net_device *netdev, struct nlattr **tb,
 	u8 value;
 	int i;
 
-	if (!tb[DCB_ATTR_NUMTCS] || !netdev->dcbnl_ops->setstate)
+	if (!tb[DCB_ATTR_NUMTCS] || !netdev->dcbnl_ops->setnumtcs)
 		return ret;
 
 	ret = nla_parse_nested(data, DCB_NUMTCS_ATTR_MAX, tb[DCB_ATTR_NUMTCS],