[VOL-4600] Updated voltha-scale-measurements-master-onu-upgrade-2-16-32-att-onus pipeline to use extended omci_timeout value in voltha deployment

Change-Id: I6f334d295d11ce67cda29aa07c5c9c5e094990e6
diff --git a/jjb/pipeline/voltha/master/voltha-scale-test.groovy b/jjb/pipeline/voltha/master/voltha-scale-test.groovy
index 1f7df02..0ef497e 100644
--- a/jjb/pipeline/voltha/master/voltha-scale-test.groovy
+++ b/jjb/pipeline/voltha/master/voltha-scale-test.groovy
@@ -510,7 +510,7 @@
         }
       }
       options {
-          timeout(time: 20, unit: 'MINUTES')
+          timeout(time: 11, unit: 'MINUTES')
       }
       steps {
         sh '''