[PATCH 21.02] feeds: freifunk: use mirror from openwrt.org

[Petr Štetiar]

We shouldn't rely on GitHub for anything serious for obvious reasons.

References: https://github.com/openwrt/openwrt/pull/3701#issuecomment-770841946
Signed-off-by: Petr Štetiar <ynezz at true.cz>
---

 We've recently got following notice from GitHub:

  "If we determine that a violation has occurred, we may need to disable the repository"

 BTW I find it quite weird, that we're using feed from external project and we
 don't have access there. This is for example issue now, where we wanted to
 prepare 21.02 release, but we can't even create branch in that feed
 repository, which is blocking builds[1]:

  Updating feed 'freifunk' from 'https://github.com/freifunk/openwrt-packages.git;openwrt-21.02' ...
  ...
  fatal: Remote branch openwrt-21.02 not found in upstream origin

 1. http://buildbot.openwrt.org/openwrt-21.02/images/builders/imx6%2Fgeneric/builds/1/steps/updatefeeds/logs/stdio

 feeds.conf.default | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/feeds.conf.default b/feeds.conf.default
index 03bfacb620fd..7aa07a8916c1 100644
--- a/feeds.conf.default
+++ b/feeds.conf.default
@@ -2,7 +2,7 @@ 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 freifunk https://github.com/freifunk/openwrt-packages.git
+src-git freifunk https://git.openwrt.org/feed/freifunk.git
 #src-git video https://github.com/openwrt/video.git
 #src-git targets https://github.com/openwrt/targets.git
 #src-git management https://github.com/openwrt-management/packages.git