Arcadyan ARV4510PW has already a build profile in OpenWrt, but it is
severely lacking. This patch brings it up-to-date.
Signed-off-by: Matti Laakso <malaakso@elisanet.fi>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39230 3c298f89-4303-0410-b956-a3cf2f4a3e73