hostapd: disable the bridge packet receive workaround, it is unnecessary on...

hostapd: disable the bridge packet receive workaround, it is unnecessary on openwrt and could potentially harm performance

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@45060 3c298f89-4303-0410-b956-a3cf2f4a3e73