hostapd: add back the patch that waits for interface bringup in ht40, it got lost with the update

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35619 3c298f89-4303-0410-b956-a3cf2f4a3e73
brcm47xx: bgmac: fix unaligned accesses to network headers.


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35621 3c298f89-4303-0410-b956-a3cf2f4a3e73