[bug] Triple whammy of mt7996e bugs on 7.2+

[Ilya K]

> We do have some mt7996 tx-hang work arounds, but that bug was reproduced in STA mode in a fairly weird
> test case with lots of virtual STA vdevs, so not sure it applies to your case.

Yeah that's definitely not it then.

> Possibly too it is something we pulled in from Felix's tree that will likely be in 7.3

I've tried just cherry-picking all the mt76 changes from Felix's current mt76-fixes (minus the AQL/PS stuff that does needs 7.3 bits in mac80211), booted it just now, jt hasn't exploded yet, so we'll see.