[PATCH v3 02/12] binman: Fix up a few missing comments

[Simon Glass]

Tidy up a few test functions which lack argument comments. Rename one that
has the same name as a different test.

Also fix up the comment for PrepareImagesAndDtbs().

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

(no changes since v1)

 tools/binman/control.py |  5 +++++
 tools/binman/ftest.py   | 22 +++++++++++++++++++++-
 2 files changed, 26 insertions(+), 1 deletion(-)

Applied to u-boot-dm/next, thanks!