udpxy: Update to version 1.0.23-9

Switch from http://sourceforge.net/projects/udpxy to http://www.udpxy.com/index-en.html

[jow: fixed source url, trimmed commit message]

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

git-svn-id: svn://svn.openwrt.org/openwrt/packages@38357 3c298f89-4303-0410-b956-a3cf2f4a3e73