Fixes the following warning:
CC [M] net/ipv6/addrconf.o
net/ipv6/addrconf.c: In function 'addrconf_init':
net/ipv6/addrconf.c:4944:2: warning: assignment from incompatible pointer type [enabled by default]
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36364 3c298f89-4303-0410-b956-a3cf2f4a3e73