qcacmn: Add support for dense roam params in wmi layer

qcacld-2.0 to qcacmn propagation

In High dense environment roaming should be triggered early
at dense RSSI threshold which provide better throughput result.
Add support for dense roaming parameters to read from ini file
and send to FW with other roaming parameters

CRs-Fixed: 953579
Change-Id: Ia63bfdd1248b4507d988b019f07164a7c75566af

wmi_unified_param.h

@@ -1061,6 +1061,10 @@ struct roam_offload_scan_params {
  *                            unit is dB above NF
  * @roam_earlystop_thres_max: Maximum RSSI threshold value for early stop,
  *                            unit is dB above NF
+ * @dense_rssi_thresh_offset: dense roam RSSI threshold difference
+ * @dense_min_aps_cnt: dense roam minimum APs
+ * @initial_dense_status: dense status detected by host
+ * @traffic_threshold: dense roam RSSI threshold
  */
 struct roam_offload_scan_rssi_params {
 	int8_t rssi_thresh;
@@ -1079,6 +1083,10 @@ struct roam_offload_scan_rssi_params {
 	uint32_t good_rssi_threshold;
 	uint32_t roam_earlystop_thres_min;
 	uint32_t roam_earlystop_thres_max;
+	int dense_rssi_thresh_offset;
+	int dense_min_aps_cnt;
+	int initial_dense_status;
+	int traffic_threshold;
 };
 
 /**