Migrate to ARM Ubuntu18.04 node

Ubuntu 16.04 still has SSH and Kernel issues.
Migrating to Ubuntu18.04 since we have a good
instance now.

TODO: Disable Ubuntu16.04 arm nodes.
- Currently Ubuntu18.04 arm nodes are under more test.
- No additional costs since no job is using 16.04 arm
  nodes.
- Once confirmed, these will be disabled.

Change-Id: I1ef6dfc04aa6e85531f824e24ad517137a7080ca
Issue-ID: CIMAN-33
Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>
diff --git a/jjb/logging-analytics/logging-analytics-pomba-pomba-aai-context-builder.yaml b/jjb/logging-analytics/logging-analytics-pomba-pomba-aai-context-builder.yaml
index 4ef1801..f0eab70 100644
--- a/jjb/logging-analytics/logging-analytics-pomba-pomba-aai-context-builder.yaml
+++ b/jjb/logging-analytics/logging-analytics-pomba-pomba-aai-context-builder.yaml
@@ -44,7 +44,7 @@
 #    mvn-settings: logging-analytics-pomba-pomba-aai-context-builder-settings
 #    files: '**'
 #    archive-artifacts: ''
-#    build-node: ubuntu1604-docker-arm64-4c-2g
+#    build-node: ubuntu1804-docker-arm64-4c-2g
 #    maven-version: 'mvn35'
 #
 - project:
diff --git a/jjb/logging-analytics/logging-analytics-pomba-pomba-network-discovery-context-builder.yaml b/jjb/logging-analytics/logging-analytics-pomba-pomba-network-discovery-context-builder.yaml
index 82317ba..3f064c4 100644
--- a/jjb/logging-analytics/logging-analytics-pomba-pomba-network-discovery-context-builder.yaml
+++ b/jjb/logging-analytics/logging-analytics-pomba-pomba-network-discovery-context-builder.yaml
@@ -44,7 +44,7 @@
 #    mvn-settings: logging-analytics-pomba-pomba-network-discovery-context-builder-settings
 #    files: '**'
 #    archive-artifacts: ''
-#    build-node: ubuntu1604-docker-arm64-4c-2g
+#    build-node: ubuntu1804-docker-arm64-4c-2g
 #    maven-version: 'mvn35'
 #
 - project:
diff --git a/jjb/logging-analytics/logging-analytics-pomba-pomba-sdc-context-builder.yaml b/jjb/logging-analytics/logging-analytics-pomba-pomba-sdc-context-builder.yaml
index ba9cf5d..41855fc 100644
--- a/jjb/logging-analytics/logging-analytics-pomba-pomba-sdc-context-builder.yaml
+++ b/jjb/logging-analytics/logging-analytics-pomba-pomba-sdc-context-builder.yaml
@@ -42,7 +42,7 @@
 #    mvn-settings: logging-analytics-pomba-pomba-sdc-context-builder-settings
 #    files: '**'
 #    archive-artifacts: ''
-#    build-node: ubuntu1604-docker-arm64-4c-2g
+#    build-node: ubuntu1804-docker-arm64-4c-2g
 #    maven-version: 'mvn35'
 #
 - project:
diff --git a/jjb/logging-analytics/logging-analytics-pomba-pomba-sdnc-context-builder.yaml b/jjb/logging-analytics/logging-analytics-pomba-pomba-sdnc-context-builder.yaml
index a40fda1..90126a0 100644
--- a/jjb/logging-analytics/logging-analytics-pomba-pomba-sdnc-context-builder.yaml
+++ b/jjb/logging-analytics/logging-analytics-pomba-pomba-sdnc-context-builder.yaml
@@ -41,7 +41,7 @@
 #    mvn-settings: logging-analytics-pomba-pomba-sdnc-context-builder-settings
 #    files: '**'
 #    archive-artifacts: ''
-#    build-node: ubuntu1604-docker-arm64-4c-2g
+#    build-node: ubuntu1804-docker-arm64-4c-2g
 #
 - project:
     name: logging-analytics-pomba-pomba-sdnc-context-builder-sonar
diff --git a/jjb/logging-analytics/logging-analytics.yaml b/jjb/logging-analytics/logging-analytics.yaml
index 6e6b289..159f357 100644
--- a/jjb/logging-analytics/logging-analytics.yaml
+++ b/jjb/logging-analytics/logging-analytics.yaml
@@ -50,7 +50,7 @@
 #    mvn-settings: 'logging-analytics-settings'
 #    files: '**'
 #    archive-artifacts: ''
-#    build-node: ubuntu1604-docker-arm64-4c-2g
+#    build-node: ubuntu1804-docker-arm64-4c-2g
 #
 
 - project: