ar71xx: merge more unaligned access hacks from cerowrt-next

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

git-svn-id: svn://svn.openwrt.org/openwrt@36374 3c298f89-4303-0410-b956-a3cf2f4a3e73
scripts/config: warn on deprected "depends" syntax instead of throwing a syntax error

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

git-svn-id: svn://svn.openwrt.org/openwrt@36375 3c298f89-4303-0410-b956-a3cf2f4a3e73