[PATCH] test: fix some pylint errors in test_bind.py

[Simon Glass]

* Use spaces not tabs
* Limit lines to 100 spaces
* Remove an unused import
* Sort imports correctly
* Add a module description

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt at canonical.com>
---
 test/py/tests/test_bind.py | 345 +++++++++++++++++++------------------
 1 file changed, 175 insertions(+), 170 deletions(-)

Applied to u-boot-dm, thanks!