hostapd: fix HT40 BSS scan checks

SVN-Revision: 18404

package/hostapd/patches/140-ht40_scan.patch

+--- a/hostapd/hw_features.c
++++ b/hostapd/hw_features.c
+@@ -329,7 +329,7 @@ static int ieee80211n_check_40mhz_5g(str
+ 	if (!match) {
+ 		for (i = 0; i < scan_res->num; i++) {
+ 			struct wpa_scan_res *bss = scan_res->res[i];
+-			ieee80211n_get_pri_sec_chan(bss, &pri_chan, &sec_chan);
++			ieee80211n_get_pri_sec_chan(bss, &bss_pri_chan, &bss_sec_chan);
+ 			if (pri_chan == bss_sec_chan &&
+ 			    sec_chan == bss_pri_chan) {
+ 				wpa_printf(MSG_INFO, "Switch own primary and "