fit: Do not throw away extra configuration on fit_image_load()

fit_image_load() threw away the extra configuration parts when
loading. We need them around for applying extra overlays for
building the boot fdt.

Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Acked-by: Simon Glass <sjg@chromium.org>
1 file changed