ath9k: backport stability fixes from r35063

git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@35064 3c298f89-4303-0410-b956-a3cf2f4a3e73
mac80211: refresh patches

git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@35065 3c298f89-4303-0410-b956-a3cf2f4a3e73