Switch luci to use feed repo with BE patch

The feed repo contains a patch [1].

[1] openwrt/luci#7279

(cherry picked from commit 016c0d0)

Author: danpawlik

feeds.conf.default

@@ -1,5 +1,6 @@
 src-git packages https://git.openwrt.org/feed/packages.git
-src-git luci https://git.openwrt.org/project/luci.git
+# src-git luci https://git.openwrt.org/project/luci.git
+src-git luci https://github.com/danpawlik/luci.git;14be
 src-git routing https://git.openwrt.org/feed/routing.git
 src-git telephony https://git.openwrt.org/feed/telephony.git
 #src-git video https://github.com/openwrt/video.git