Don't use 'is' and 'is not' for comparison with literals. This fixes
warnings like:
.../mbn_tools.py:1097: SyntaxWarning: "is not" with a literal. Did you mean "!="?
if int(off) is not 0:
Change-Id: Idd68acfcbd1a07cbbb9ab41d9581c4850a431445
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51427
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>