updating voltha-provisioning test job

Change-Id: Ic793693923b580a52f269543ab0c83532326de28
diff --git a/jjb/voltha-atest-provisioning.yaml b/jjb/voltha-atest-provisioning.yaml
index 96f307d..494d6f2 100644
--- a/jjb/voltha-atest-provisioning.yaml
+++ b/jjb/voltha-atest-provisioning.yaml
@@ -36,7 +36,7 @@
     parameters:
       - string:
           name: executorNode
-          default: 'ubuntu16.04-basebuild-4c-8g'
+          default: 'qct-pod3-voltha-testing'
           description: 'Name of the Jenkins node to run the job on'
 
       - string:
@@ -46,7 +46,7 @@
 
       - string:
           name: manifestBranch
-          default: '$GERRIT_BRANCH'
+          default: 'master'
           description: 'Name of the repo branch to use'
 
     project-type: pipeline