ath9k: fix an AR9580 specific crypto related stability issue

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 36306

package/mac80211/patches/300-pending_work.patch

@@ -1110,3 +1110,14 @@
  		}
  
  		ath_tx_process_buffer(sc, txq, &ts, bf, &bf_head);
+--- a/drivers/net/wireless/ath/ath9k/ar9580_1p0_initvals.h
++++ b/drivers/net/wireless/ath/ath9k/ar9580_1p0_initvals.h
+@@ -519,7 +519,7 @@ static const u32 ar9580_1p0_mac_core[][2
+ 	{0x00008258, 0x00000000},
+ 	{0x0000825c, 0x40000000},
+ 	{0x00008260, 0x00080922},
+-	{0x00008264, 0x9bc00010},
++	{0x00008264, 0x9d400010},
+ 	{0x00008268, 0xffffffff},
+ 	{0x0000826c, 0x0000ffff},
+ 	{0x00008270, 0x00000000},