mt76: fix aggregation stop issue

Cancel the workqueue after the tid has been cleaned up, in order to
avoid a possible rescheduling from within the work function.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2019-10-07 12:30:46 +02:00
commit e7aaa72f47