binman: Allow entry args to be required
If an entry argument is needed by an entry but the entry argument is not
present, then a strange error can occur when trying to read the file.
Fix this by allowing arguments to be required. Select this option for the
cros-ec-rw entry. If a filename is provided in the node, allow that to be
used.
Also tidy up a few related tests to make the error string easier to find,
and fully ignore unused return values.
Signed-off-by: Simon Glass <sjg@chromium.org>
4 files changed