use $HOME/.volt/config instead of $HOME/.volt/config-minimal

* we are currently only using and generating $HOME/.volt/config during
  our pipeline runs, and should not use any arbitrary configuration file
  like $HOME/.volt/config-minimal where we do not know the content nor
  its origin
* replace the usage of $HOME/.volt/config-minimal with
  $HOME/.volt/config for all jobs

Signed-off-by: Jan Klare <jan.klare@bisdn.de>
Change-Id: I07c7808996dbcf0425b908844ffe15b68f4ad542
diff --git a/jjb/pipeline/voltha/voltha-tt-physical-functional-tests.groovy b/jjb/pipeline/voltha/voltha-tt-physical-functional-tests.groovy
index 1eacba9..c92d747 100644
--- a/jjb/pipeline/voltha/voltha-tt-physical-functional-tests.groovy
+++ b/jjb/pipeline/voltha/voltha-tt-physical-functional-tests.groovy
@@ -40,7 +40,7 @@
 
   environment {
     KUBECONFIG="$WORKSPACE/${configBaseDir}/${configKubernetesDir}/${configFileName}.conf"
-    VOLTCONFIG="$HOME/.volt/config-minimal"
+    VOLTCONFIG="$HOME/.volt/config"
     PATH="$WORKSPACE/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
   }