Fixing seba-ponsim-latest.yaml after Gerrit 13796 has been merged

Change-Id: I155952586a9f1bb9878335f311b39464e0df8737
diff --git a/configs/seba-ponsim-latest.yaml b/configs/seba-ponsim-latest.yaml
index 40da405..31bd396 100644
--- a/configs/seba-ponsim-latest.yaml
+++ b/configs/seba-ponsim-latest.yaml
@@ -82,7 +82,7 @@
 sadis-server:
   image:
     tag: 'latest'
-volt:
+olt-service:
   image:
     tag: 'master'
 rcord: