feeds.conf.default: the telephony feed is now on git.openwrt.org

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 40530

feeds.conf.default

 src-git packages http://git.openwrt.org/packages.git
 src-git luci http://git.openwrt.org/project/luci.git
 src-git routing https://github.com/openwrt-routing/packages.git
-src-git telephony http://feeds.openwrt.nanl.de/openwrt/telephony.git
+src-git telephony http://git.openwrt.org/feed/telephony.git
 #src-svn xwrt http://x-wrt.googlecode.com/svn/trunk/package
 #src-svn phone svn://svn.openwrt.org/openwrt/feeds/phone
 #src-svn efl svn://svn.openwrt.org/openwrt/feeds/efl