feeds.conf: use git.openwrt.org instead of git.lede-project.org

feeds.conf

 src-git turrispackages https://gitlab.labs.nic.cz/turris/turris-os-packages.git^origin/master
-src-git packages https://git.lede-project.org/feed/packages.git
-src-git luci https://git.lede-project.org/project/luci.git
-src-git routing https://git.lede-project.org/feed/routing.git
-src-git telephony https://git.lede-project.org/feed/telephony.git
+src-git packages https://git.openwrt.org/feed/packages.git
+src-git luci https://git.openwrt.org/project/luci.git
+src-git routing https://git.openwrt.org/feed/routing.git
+src-git telephony https://git.openwrt.org/feed/telephony.git
 #src-git printing https://github.com/miska/openwrt-printing-packages.git
 src-git openwisp https://github.com/openwisp/openwisp-config.git
 src-git sidn https://github.com/SIDN/sidn_openwrt_pkgs.git