Use 3.4.8 version of the openolt debian package for master jobs on all pods

Change-Id: I9ecd228e973112ced0e4b9f9871bc423bf15f4bc
diff --git a/deployment-configs/dt-berlin-pod-gpon-adtran-DT.yaml b/deployment-configs/dt-berlin-pod-gpon-adtran-DT.yaml
index 1a256b8..98b9851 100644
--- a/deployment-configs/dt-berlin-pod-gpon-adtran-DT.yaml
+++ b/deployment-configs/dt-berlin-pod-gpon-adtran-DT.yaml
@@ -168,4 +168,4 @@
     ip: '10.34.90.49'
     user: 'admin'
     password: 'secret'
-    type: 'EPC'
\ No newline at end of file
+    type: 'EPC'