qcacmn: Init average rssi with frames rssi on receipt

Initialize average rssi with instantaneous rssi in
util_scan_unpack_beacon_frame intead of marking it as
DUMMY.

Change-Id: Ie2fd577feeb46d61915c6974d8c627acb31e8b81
CRs-Fixed: 2096979

umac/scan/core/src/wlan_scan_cache_db.c

@@ -425,12 +425,12 @@ static void scm_delete_duplicate_entry(struct scan_dbs *scan_db,
 		/* If elapsed time since last rssi update for this
 		 * entry is smaller than a thresold, calculate a
 		 * running average of the RSSI values.
-		 * Otherwise last RSSI is more representive of the
-		 * signal strength.
+		 * Otherwise new frames RSSI is more representive
+		 * of the signal strength.
 		 */
 		time_gap =
-			scan_entry->rssi_timestamp -
-			scan_params->rssi_timestamp;
+			scan_params->scan_entry_time -
+			scan_entry->rssi_timestamp;
 		if (time_gap > WLAN_RSSI_AVERAGING_TIME)
 			scan_params->avg_rssi =
 				WLAN_RSSI_IN(scan_params->rssi_raw);

umac/scan/dispatcher/src/wlan_scan_utils_api.c

@@ -595,7 +595,7 @@ util_scan_unpack_beacon_frame(uint8_t *frame,
 		(le16toh(*(uint16_t *)hdr->i_seq) >> WLAN_SEQ_SEQ_SHIFT);
 
 	scan_entry->rssi_raw = rx_param->rssi;
-	scan_entry->avg_rssi = WLAN_RSSI_DUMMY_MARKER;
+	scan_entry->avg_rssi = WLAN_RSSI_IN(scan_entry->rssi_raw);
 	scan_entry->tsf_delta = rx_param->tsf_delta;
 
 	/* store jiffies */