bootrom-tools: nuttx2ffff produces boot-over-Unipro formatted TFTFs
bootrom-tools: nuttx2ffff produces boot-over-Unipro formatted TFTFs

Instead of deleting the TFTF packages produced in the process of building an
FFFF, rename them with the correct format and ID numbers for use in
boot-over-Unipro.

Testing Done: build ES3 generic bridge firmware, see TFTF files produced
Bug Number: SW-2252
Review URL: https://reviews.leaflabs.com/r/2537/
Reviewed by: Morgan Girling <girling_morgan@projectara.com>, Jun Li <li_jun@projectara.com>

Signed-off-by: Eli Sennesh <5ebe47bba478951130dff4ea23416219c2dfa45d@leaflabs.com>

gregkh/bootrom-tools,projectara/bootrom-tools,gregkh/bootrom-tools,projectara/bootrom-tools,gregkh/bootrom-tools,projectara/bootrom-tools