[FS#59] ath9k: Switch to using mac80211 intermediate software queues causes unstable connections

[LEDE Bugs]

The following task has a new comment added:

FS#59 - ath9k: Switch to using mac80211 intermediate software queues causes unstable connections
User who did this - Felix Fietkau (nbd)

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Please try the latest version from my staging tree
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=59#comment173