qcacld-3.0: Return value check error in getlinkspeed

The return value check logic is wrong in __iw_get_softap_linkspeed.
Which cause get linkspeed always failed.

Change-Id: If37732867f91e2b95996614ab863953d5ed5af93
CRs-Fixed: 2232332

core/hdd/src/wlan_hdd_hostapd.c

@@ -5237,7 +5237,7 @@ int __iw_get_softap_linkspeed(struct net_device *dev,
 	}
 	rc = wlan_hdd_get_linkspeed_for_peermac(adapter, &macAddress,
 						&link_speed);
-	if (!rc) {
+	if (rc) {
 		hdd_err("Unable to retrieve SME linkspeed");
 		return rc;
 	}