AP: Fix erroneous "station tried TKIP" error

The commit b5fd8b18335f2a7784a1f0a5eb5dbe45976d9e21
"VHT: Do not allow use of TKIP with VHT" introduced
an off-by-one regression: a WPA/RSN 11n AP would no
longer accept stations to connect, instead it would
produce a bogus error message:
... Station tried to use TKIP with HT association.

Signed-hostapd: Christian Lamparter <chunkeey@googlemail.com>

src/ap/ieee802_11.c

@@ -785,7 +785,7 @@ static u16 check_assoc_ies(struct hostapd_data *hapd, struct sta_info *sta,
 #endif /* CONFIG_IEEE80211R */
 
 #ifdef CONFIG_IEEE80211N
-		if ((sta->flags & (WLAN_STA_HT | WLAN_STA_VHT)) ||
+		if ((sta->flags & (WLAN_STA_HT | WLAN_STA_VHT)) &&
 		    wpa_auth_get_pairwise(sta->wpa_sm) == WPA_CIPHER_TKIP) {
 			hostapd_logger(hapd, sta->addr,
 				       HOSTAPD_MODULE_IEEE80211,