[VOL-5005] - Create v2.12 release branch for test jobs.

[VOL-5013] - Disable voltha 2.8 jenkins jobs.

.wip/periodic-voltha-multiple-olts-pm-data-test-bbsim/TODO
jjb/voltha-e2e.yaml
jjb/voltha-e2e/master.yaml
jjb/voltha-e2e/voltha-2.11.yaml
jjb/voltha-e2e/voltha-2.12.yaml
jjb/voltha-e2e/voltha-2.8.yaml
--------------------------------
    o Refactor test periodic-voltha-multiple-olts-pm-data-test-bbsim
    o out of voltha-e2e.yaml into versioned release subdirectories.

Change-Id: I78ee8aa852d7d9724af48c539e2a1a90628ad756
diff --git a/vars/installVoltctl.groovy b/vars/installVoltctl.groovy
index e8b08d4..f5f54af 100644
--- a/vars/installVoltctl.groovy
+++ b/vars/installVoltctl.groovy
@@ -37,6 +37,7 @@
     // This logic seems odd given we branch & tag repositories
     // for release so hilight non-frozen until we know for sure.
     def released=[
+	// 'voltha-2.12' : '?.?.?'
 	// https://github.com/opencord/voltctl/releases/tag/v1.8.1
 	// 'voltha-2.11' : '1.8.4',
 	// https://github.com/opencord/voltctl/releases/tag/v1.7.6