qcacld-3.0: Keep WEP key when vendor subcmd restart sap

When vendor subcmd set sap channel, driver will do sap restart,
WEP key will be cleared when stop bss, then it will cause
WEP shared connection fail.

Fix is to keep WEP key when bss stop caused by
QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_CHANNEL.

Change-Id: Ib91993ae953f04c01dc9130774f91300dd8bd62a
CRs-Fixed: 2134346

core/hdd/inc/wlan_hdd_main.h

@@ -689,10 +689,13 @@ struct hdd_hostapd_state {
  *  to maintain SCC mode with the STA role on the same card.
  *  this usually happens when STA is connected to an external
  *  AP that runs on a different channel
+ * @BSS_STOP_DUE_TO_VENDOR_CONFIG_CHAN: BSS stopped due to
+ *  vendor subcmd set sap config channel
  */
 enum bss_stop_reason {
 	BSS_STOP_REASON_INVALID = 0,
 	BSS_STOP_DUE_TO_MCC_SCC_SWITCH = 1,
+	BSS_STOP_DUE_TO_VENDOR_CONFIG_CHAN = 2,
 };
 
 /**

core/hdd/src/wlan_hdd_cfg80211.c

@@ -10091,6 +10091,7 @@ __wlan_hdd_cfg80211_sap_configuration_set(struct wiphy *wiphy,
 		ap_ctx->sapConfig.channel = config_channel;
 		ap_ctx->sapConfig.ch_params.ch_width =
 					ap_ctx->sapConfig.ch_width_orig;
+		ap_ctx->bss_stop_reason = BSS_STOP_DUE_TO_VENDOR_CONFIG_CHAN;
 
 		wlan_reg_set_channel_params(hdd_ctx->hdd_pdev,
 				ap_ctx->sapConfig.channel,

core/hdd/src/wlan_hdd_hostapd.c

@@ -1826,9 +1826,13 @@ QDF_STATUS hdd_hostapd_sap_event_cb(tpSap_Event pSapEvent,
 			hdd_ctx->dev_dfs_cac_status = DFS_CAC_NEVER_DONE;
 		}
 		hdd_debug("bss_stop_reason=%d", ap_ctx->bss_stop_reason);
-		if (ap_ctx->bss_stop_reason !=
-			BSS_STOP_DUE_TO_MCC_SCC_SWITCH) {
-			/* when MCC to SCC switching happens, key storage
+		if ((BSS_STOP_DUE_TO_MCC_SCC_SWITCH !=
+			ap_ctx->bss_stop_reason) &&
+		    (BSS_STOP_DUE_TO_VENDOR_CONFIG_CHAN !=
+			ap_ctx->bss_stop_reason)) {
+			/*
+			 * when MCC to SCC switching or vendor subcmd
+			 * setting sap config channel happens, key storage
 			 * should not be cleared due to hostapd will not
 			 * repopulate the original keys
 			 */