ar71xx: make implicit alignment in struct pptp_addr explicit to fix ABI breakage caused by the unaligned access hacks patch

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

git-svn-id: svn://svn.openwrt.org/openwrt@37223 3c298f89-4303-0410-b956-a3cf2f4a3e73
firewall: add missing dependencies

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

git-svn-id: svn://svn.openwrt.org/openwrt@37224 3c298f89-4303-0410-b956-a3cf2f4a3e73