ath9k: add a fix for tx pending frame accounting, fixes some tx hang issues

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41673 3c298f89-4303-0410-b956-a3cf2f4a3e73
libubox: update to the latest version, fixes a jshn parsing error (#17128)

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41674 3c298f89-4303-0410-b956-a3cf2f4a3e73
iwinfo: fix crash on parsing mtd (#15807)

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41675 3c298f89-4303-0410-b956-a3cf2f4a3e73