use CS_INT for variable, as that's what the function takes

Instead of making the variable "int", and then casting it to
CS_INT when calling the function.  That just won't work.

src/modules/rlm_sql/drivers/rlm_sql_freetds/rlm_sql_freetds.c

@@ -315,9 +315,9 @@ static sql_rcode_t sql_query(rlm_sql_handle_t *handle, UNUSED rlm_sql_config_t *
 static int sql_num_fields(rlm_sql_handle_t *handle, UNUSED rlm_sql_config_t *config)
 {
 	rlm_sql_freetds_conn_t *conn = handle->conn;
-	int num = 0;
+	CS_INT num = 0;
 
-	if (ct_res_info(conn->command, CS_NUMDATA, (CS_INT *)&num, CS_UNUSED, NULL) != CS_SUCCEED) {
+	if (ct_res_info(conn->command, CS_NUMDATA, &num, CS_UNUSED, NULL) != CS_SUCCEED) {
 		ERROR("Error retrieving column count");
 
 		return RLM_SQL_ERROR;