Remove namespace designation from p4rtc_server

Today we use 'tost'. Tomorrow we might use 'sdfabric'.
Let's remove this for now and assume pfcp-agent will be deployed in the same name space of onos.

Note: changing VERSION to 1.0.13-dev since we don't need a tag for umbrella chart

Change-Id: I66c407c3ab03cff787502c455aca5b9e47eac734
diff --git a/VERSION b/VERSION
index bb83058..ce396e1 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.12
+1.0.13-dev