ar71xx: make 902-unaligned_access_hacks.patch apply again

r46161 updated headers also touched by it, so it needed to be refreshed
as well.

Closes #20033.

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@46165 3c298f89-4303-0410-b956-a3cf2f4a3e73