[U-Boot] [PATCH 26/53] binman: Allow the fdtmap to remain unchanged

[sjg at google.com]

When updating an existing image where the size of all entries remains the
same, we should not need to regenerate the fdtmap. Update the entry to
return the same fdtmap as was read from the image.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 tools/binman/etype/fdtmap.py | 55 ++++++++++++++++++++----------------
 1 file changed, 30 insertions(+), 25 deletions(-)

Applied to u-boot-dm, thanks!