Allow custom routes inside UPF

This is required to work around liveness failure in a single interface
machine where Kubelet node IP is part of eNB subnet.

Change-Id: I37549d89fbe7e045e6639295c29652ba0d6fb5e4
diff --git a/bess-upf/Chart.yaml b/bess-upf/Chart.yaml
index 9cb42b8..42f21df 100644
--- a/bess-upf/Chart.yaml
+++ b/bess-upf/Chart.yaml
@@ -7,4 +7,4 @@
 name: bess-upf
 icon: https://guide.opencord.org/logos/cord.svg
 
-version: 0.0.5
+version: 0.0.6