qcacld-3.0: Change return type to QDF_STATUS

Change return type of following APIs from int to QDF_STATUS.
wmi_unified_register_event()
wmi_unified_register_event_handler()
wmi_unified_register_raw_event_handler()
wmi_unified_unregister_event()
wmi_unified_unregister_event_handler()

Change-Id: I534b499edbcfec6eddea0e9ed48f9eb1a2e872c8
CRs-Fixed: 2791275

components/target_if/disa/src/target_if_disa.c

@@ -78,7 +78,7 @@ target_if_disa_register_ev_handlers(struct wlan_objmgr_psoc *psoc)
 	status = wmi_unified_register_event(wmi_handle,
 				wmi_vdev_encrypt_decrypt_data_rsp_event_id,
 				target_if_encrypt_decrypt_event_handler);
-	if (status) {
+	if (QDF_IS_STATUS_ERROR(status)) {
 		target_if_err("Failed to register Scan match event cb");
 		return QDF_STATUS_E_FAILURE;
 	}