update berlin-packages to HEAD of "for-Hedy-1.0.x" branch (08. Dec 2018)

* remove VPN03 references
* update links to https

feeds.conf

@@ -1,7 +1,7 @@
 src-git packages https://github.com/openwrt/packages.git^40da7ecf21ffe1f3523ffa430c406e1db58ce3d4
 src-git luci https://github.com/openwrt/luci.git^8a3100c146b517295555bfe287792c0f4db6dae6
 src-git routing https://github.com/openwrt-routing/packages.git^216512ca2c9eb86210d50f70bc9e16fe706196ff
-src-git packages_berlin https://github.com/freifunk-berlin/firmware-packages.git^0261250c2ed2bb34b9a4c4694c5e31c5022e1704
+src-git packages_berlin https://github.com/freifunk-berlin/firmware-packages.git^1d4eda3d43eccd715c47cb4cae925f024faf6ffb
 
 ##
 # just for reference (syntax of different feed-sources)