Consistency pass on naming in JJB

- Name of the pipeline script when parameterized: `pipeline-script`
- Name of executor the job is running on: `build-node` (or `buildNode` if
  in a pipeline job)

Change-Id: Id069a2d3f17dc5dbd7259e0ed046b72017da0538
diff --git a/jjb/voltha-publish.yaml b/jjb/voltha-publish.yaml
index e58a5ef..d8b8246 100644
--- a/jjb/voltha-publish.yaml
+++ b/jjb/voltha-publish.yaml
@@ -9,7 +9,7 @@
       - 'voltha-publish':
           project-regexp: 'voltha'
           branch-regexp: '^(master|voltha-1.6|voltha-1.7)$'
-          executor-node: 'ubuntu16.04-basebuild-1c-2g'
+          build-node: 'ubuntu16.04-basebuild-1c-2g'
           dependency-jobs: ''
 
 - job-template:
@@ -38,8 +38,8 @@
 
     parameters:
       - string:
-          name: executorNode
-          default: '{executor-node}'
+          name: buildNode
+          default: '{build-node}'
           description: 'Name of the Jenkins node to run the job on'
 
       - string: