SME: Optimize recovery from assocication command failures

mac80211 can indicate this mainly because of channel selection
conflicts with other vifs. If there is another BSS on another
channel, we should try to connect to it instead.

wpa_supplicant/sme.c

@@ -396,7 +396,8 @@ void sme_associate(struct wpa_supplicant *wpa_s, enum wpas_mode mode,
 	if (wpa_drv_associate(wpa_s, &params) < 0) {
 		wpa_msg(wpa_s, MSG_INFO, "Association request to the driver "
 			"failed");
-		wpa_supplicant_req_scan(wpa_s, 5, 0);
+		wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
+		os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
 		return;
 	}