Fixes: 987da0cfe79 mwifiex: toggle carrier state in start_ap/stop_ap.

netif_carrier_ok() check should not be negated when shutting down the AP.
Spotted by Marvell during their review.

Change-Id: I3a4ab550e41c1aef861b06aa3d7322f5eb3e5722
diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index 699a833..275ce3c 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -1766,7 +1766,7 @@
 	}
 
 	priv->media_connected = false;
-	if (!netif_carrier_ok(priv->netdev))
+	if (netif_carrier_ok(priv->netdev))
 		netif_carrier_off(priv->netdev);
 	mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
 	mwifiex_clean_txrx(priv);