Fox lava_scheduler_app/models.py: fix typo
Fox lava_scheduler_app/models.py: fix typo

Change-Id: Ie7a1820def3668b1ac56108f6f95fa6bd355617d

Linaro/lava-server,Linaro/lava-server,OSSystems/lava-server,Linaro/lava-server,OSSystems/lava-server,Linaro/lava-server,OSSystems/lava-server