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
diff --git a/umac/scan/dispatcher/src/wlan_scan_utils_api.c b/umac/scan/dispatcher/src/wlan_scan_utils_api.c
index 48a2f73..2f77884 100644
--- a/umac/scan/dispatcher/src/wlan_scan_utils_api.c
+++ b/umac/scan/dispatcher/src/wlan_scan_utils_api.c
@@ -595,7 +595,7 @@
 		(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 */