Linville <linville@tuxdriver.com> 1325705506 -0500

ath9k: tx queue enable is read only for EDMA chipsets

for EDMA chip AR_Q_TXE (tx enable for each queue) is read only

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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