Increase timeout for openonu-go-test for multiple OLTs test

Change-Id: Ie45038f53f2331a581a70e0460b0c29f82a69d37
diff --git a/jjb/voltha-e2e.yaml b/jjb/voltha-e2e.yaml
index 3f36b89..49ec66b 100755
--- a/jjb/voltha-e2e.yaml
+++ b/jjb/voltha-e2e.yaml
@@ -709,7 +709,7 @@
               teardown: true
               logging: true
           time-trigger: "H H/12 * * *"
-          timeout: 235
+          timeout: 270
 
       - 'voltha-periodic-test':
           name: 'periodic-voltha-multiple-olts-openonu-go-test-bbsim-2.10'
@@ -948,7 +948,7 @@
               teardown: true
               logging: true
           olts: 2
-          timeout: 235
+          timeout: 270
 
       - 'voltha-periodic-test':
           name: 'patchset-voltha-2.9-multiple-olts-openonu-go-test-bbsim'