According to the info from NVRAM we should use port 8 for the CPU (and
interface eth2). Unfortunately it doesn't work right now, so lets switch
to the port 5.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

git-svn-id: svn://svn.openwrt.org/openwrt/branches/chaos_calmer@46586 3c298f89-4303-0410-b956-a3cf2f4a3e73