[PATCH] binman: Show the image name for the top-level section

[Simon Glass]

At present we show 'main section' as the top-level section name. It may
be more helpful to show the actual image name. This is tricky because
Image is a parent class of Entry_section, so there is no distinction
between an image and a section.

Update it to show the image name.

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

 tools/binman/ftest.py | 68 +++++++++++++++++++------------------------
 tools/binman/image.py |  2 +-
 2 files changed, 31 insertions(+), 39 deletions(-)

Applied to u-boot-dm, thanks!