[U-Boot] [PATCH 06/53] binman: Convert GetFdtSet() to use a dict

[sjg at google.com]

At present this function returns a set of device-tree filenames. It has no
way of returning the actual device-tree object. Change it to a dictionary
so that we can add this feature in a future patch.

Also drop fdt_set since it is no-longer used.

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

 tools/binman/entry.py          | 12 +++++++-----
 tools/binman/etype/blob_dtb.py | 11 ++++++-----
 tools/binman/etype/section.py  |  8 ++++----
 tools/binman/state.py          | 14 ++++++--------
 4 files changed, 23 insertions(+), 22 deletions(-)

Applied to u-boot-dm, thanks!