qcacld-3.0: Fix stack corruption in beacon table mode

qcacld-2.0 to qcacld-3.0 propagation

Currently driver sends beacon report for each channel recursively
in beacon table mode. There is a chance that variables on stack
can exceed allocated stack size which can lead to corruption of
stack. Remove unnecessary variables which are not required for
beacon table mode to fix this issue.

Change-Id: I9aa35e7da916f5d4c6380862d292b44c254c9334
CRs-Fixed: 2184037

core/sme/src/rrm/sme_rrm.c

@@ -682,12 +682,7 @@ static QDF_STATUS sme_rrm_issue_scan_req(tpAniSirGlobal mac_ctx)
 	QDF_STATUS status = QDF_STATUS_SUCCESS;
 	tpRrmSMEContext sme_rrm_ctx = &mac_ctx->rrm.rrmSmeContext;
 	uint32_t session_id;
-	uint32_t max_chan_time;
 	tSirScanType scan_type;
-	uint64_t current_time;
-	struct scan_start_request *req;
-	struct wlan_objmgr_vdev *vdev;
-	uint32_t chan_num;
 
 	status = csr_roam_get_session_id_from_bssid(mac_ctx,
 			&sme_rrm_ctx->sessionBssId, &session_id);
@@ -712,6 +707,12 @@ static QDF_STATUS sme_rrm_issue_scan_req(tpAniSirGlobal mac_ctx)
 
 	if ((eSIR_ACTIVE_SCAN == scan_type) ||
 			(eSIR_PASSIVE_SCAN == scan_type)) {
+		uint32_t max_chan_time;
+		uint64_t current_time;
+		struct scan_start_request *req;
+		struct wlan_objmgr_vdev *vdev;
+		uint32_t chan_num;
+
 		req = qdf_mem_malloc(sizeof(*req));
 		if (!req) {
 			sme_debug("Failed to allocate memory");