mac80211: merge an idle handling fix (fixes ath9k_htc client mode), refresh patches

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36265 3c298f89-4303-0410-b956-a3cf2f4a3e73
ath9k_htc: accept firmware versions newer than 1.3

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36266 3c298f89-4303-0410-b956-a3cf2f4a3e73
ath9k: fix a tx processing race condition on AR9300+

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36267 3c298f89-4303-0410-b956-a3cf2f4a3e73