mac80211: select relayfs if ath9k debugfs is enabled

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35757 3c298f89-4303-0410-b956-a3cf2f4a3e73
mac80211: update linux-firmware to latest revision

Fixes mwl8k AP mode for 88e8366.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35758 3c298f89-4303-0410-b956-a3cf2f4a3e73