Add in some further changes from the AR9300 HAL:
Add in some further changes from the AR9300 HAL:

* Add a new ANI variable, for AR9003 and later chips;
* The AR9003 and later series chips support two RX queues now, so start
  down the road of supporting that;
* Add some new TX queue types - uAPSD is possible on earlier chips,
  but PAPRD is relevant to AR9003 and later.

Obtained from:	Qualcomm Atheros, Linux ath9k

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