resources.conf: more IP addresses

The upcoming BSC+MSC+HLR+MGCPGW style will need four IP addresses. I found six
already configured on the main unit, so adding all of them to our
resources.conf.

Change-Id: Ie0e0ed9bb7fbd87ebe630c32ef59659117d77ed8
diff --git a/example/resources.conf b/example/resources.conf
index 8b61248..4bb4dbd 100644
--- a/example/resources.conf
+++ b/example/resources.conf
@@ -4,6 +4,9 @@
 - addr: 10.42.42.1
 - addr: 10.42.42.2
 - addr: 10.42.42.3
+- addr: 10.42.42.4
+- addr: 10.42.42.5
+- addr: 10.42.42.6
 
 bts:
 - label: sysmoBTS 1002