Rename basebuild to builder

Rename nodes from "basebuild" to "builder" in preparation
for updating to common-packer.

Change-Id: I6ff64e3ee5c856391430296aded45d84c46de171
Issue-ID: CIMAN-33
Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>
diff --git a/jjb/portal/portal.yaml b/jjb/portal/portal.yaml
index 5f244f6..9a04c1e 100644
--- a/jjb/portal/portal.yaml
+++ b/jjb/portal/portal.yaml
@@ -14,14 +14,14 @@
     mvn-settings: 'portal-settings'
     files: '**'
     archive-artifacts: ''
-    build-node: ubuntu1604-basebuild-4c-4g
+    build-node: ubuntu1604-builder-4c-4g
     maven-deploy-properties: -Dbuild.number=$BUILD_NUMBER
 - project:
     name: portal-sonar
     jobs:
       - gerrit-maven-sonar
     cron: 'H 11 * * *'
-    build-node: ubuntu1604-basebuild-4c-4g
+    build-node: ubuntu1604-builder-4c-4g
     project: 'portal'
     project-name: 'portal'
     branch: 'master'