Merge pull request #1340 from teslamint/patch-1

coova-chilli: add network option in chilli.config

net/coova-chilli/files/chilli.config

     # name of TUN device name. required.
     option tundev 'tun0'
 
+    # name of network interface
+    option network ''
+
     # Include this flag if process is to run in the foreground
     #option fg