amd_spi100: Use flashprog_read_chunked() for progress reporting

Read up to 64 KiB in one go to be able to report progress in between.
Otherwise, we might read the whole flash at once, without being able
to report progress.

Change-Id: I4d06f6f5d19944fe22298a1ddfb91244fa7c2eb6
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.sourcearcade.org/c/flashprog/+/74867
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
1 file changed