mt76: dma: do not write cpu_idx on rx queue reset until after refill

The hardware should only start processing the ring after at least one
buffer has been added

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2020-01-20 12:11:07 +01:00
commit 8f6c4f7ba1