miniupnpd: security update to 1.8

git-svn-id: svn://svn.openwrt.org/openwrt/packages@35520 3c298f89-4303-0410-b956-a3cf2f4a3e73
miniupnpc: security update to 1.8

git-svn-id: svn://svn.openwrt.org/openwrt/packages@35521 3c298f89-4303-0410-b956-a3cf2f4a3e73