mt76: reduce tx queue lock hold time

- call txq dequeue without holding txq lock (locking handled by mac80211)
- disable bh around tx queue schedule

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2022-03-19 21:40:14 +01:00
commit 9912a4639d