[U-Boot] [PATCH 03/34] binman: Use cls instead of self for class methods

[sjg at google.com]

It is more common to use the name 'cls' for the class object of a class
method, to distinguish it from normal methods, which use 'self' Update the
binman tests accordingly.

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

 tools/binman/ftest.py | 54 +++++++++++++++++++++----------------------
 1 file changed, 27 insertions(+), 27 deletions(-)

Applied to u-boot-dm, thanks!