qcacmn: Follow spec for NL80211_CMD_START_SCHED_SCAN

qcacld-2.0 to qca-wifi-host-cmn propagation

If no SSID are passed to NL80211_CMD_START_SCHED_SCAN cmd,
interface spec requires that an active scan is not needed.
Therefore a passive scan is now requested by cfg80211_sched_scan_request
for this case.

Change-Id: I1b1b9232ffb9d8d5c0bc9a1d75145d39c9fe9e6b
CRs-Fixed: 902092

os_if/linux/scan/src/wlan_cfg80211_scan.c

@@ -507,6 +507,12 @@ int wlan_cfg80211_sched_scan_start(struct wlan_objmgr_pdev *pdev,
 			request->match_sets[i].rssi_thold;
 	}
 
+	/* set scan to passive if no SSIDs are specified in the request */
+	if (0 == request->n_ssids)
+		req->do_passive_scan = true;
+	else
+		req->do_passive_scan = false;
+
 	for (i = 0; i < request->n_ssids; i++) {
 		j = 0;
 		while (j < req->networks_cnt) {