The handle "fd" was created in imx8image.c:249 by calling the "fopen"
function and is lost in imx8image.c:282.
Should close the 'fd' file descriptor before exiting the
parse_cfg_file(image_t *param_stack, char *name) function.
Fixes: a2b96ece5b ("tools: add i.MX8/8X image support")
Signed-off-by: Mikhail Ilin <ilin.mikhail.ol@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>