Merge patch series "test/py: fit: Deduplicate the test"

This series from Marek Vasut <marek.vasut@mailbox.org> cleans up some of
the FIT pytests we have and then extends mkimage to support including
the TEE in FIT images when using "-f auto" to create the resulting FIT.

Link: https://lore.kernel.org/r/20251125154324.51940-1-marek.vasut@mailbox.org

diff --cc tools/fit_image.c
Simple merge