qcacld-3.0: Initialize weight_copy when weight is SAP_ACS_WEIGHT_MAX

When channel 4 is unsafe channel in 2.4g LTE coex ACS case,
the weight for channel 4 will be calculated as 0 by function
sap_sort_chl_weight_ht40_24_g, it's wrong because weight_copy
doesn't be initialized in this case, so acs channel select
may choose wrong channel to start sap.

Fix is to add initialization for weight_copy when weight is
SAP_ACS_WEIGHT_MAX.

Change-Id: I4aa0fb133774d9980146a9ceae9b91154bd15bbc
CRs-Fixed: 2282371

core/sap/src/sap_ch_select.c

@@ -1694,8 +1694,10 @@ static void sap_compute_spect_weight(tSapChSelSpectInfo *pSpectInfoParams,
 		if (rssi < SOFTAP_MIN_RSSI)
 			rssi = SOFTAP_MIN_RSSI;
 
-		if (pSpectCh->weight == SAP_ACS_WEIGHT_MAX)
+		if (pSpectCh->weight == SAP_ACS_WEIGHT_MAX) {
+			pSpectCh->weight_copy = pSpectCh->weight;
 			goto debug_info;
+		}
 
 		/* There may be channels in scanlist, which were not sent to
 		 * FW for scanning as part of ACS scan list, but they do have an