[VOL-5010] - Clone unit tests to run on a v2.12 branch

jjb/voltha-test/voltha.yaml
---------------------------
  o Clone 2.11 tests into 2.12

vars/installVoltctl.groovy
--------------------------
  o Version update pending on tool deployment.

jjb/pipeline/voltha/makefile
jjb/pipeline/voltha/master/bbsim-tests.groovy
jjb/pipeline/voltha/voltha-2.11/bbsim-tests.groovy
jjb/pipeline/voltha/voltha-2.11/physical-build.groovy
jjb/pipeline/voltha/voltha-2.12/bbsim-tests.groovy
jjb/pipeline/voltha/voltha-2.12/physical-build.groovy
-----------------------------------------------------
  o Clone master test scripts onto a release branch.
  o Update to remove branch=master dependencies.

jjb/repos/voltha-helm-charts.yaml
---------------------------------
  o Add pipeline job set voltha-2.12
  o Remove jobset voltha-2.8

jjb/software-upgrades.yaml
--------------------------
  o Clone v2.11 defintions into v2.12
  o Rename *-new and *-old into *-master and *-2.8
  o Comment out 2.8 pipeline entries.

jjb/verify/bbsim-sadis-server.yaml
jjb/verify/bbsim.yaml
jjb/verify/ofagent-go.yaml
jjb/verify/voltha-api-server.yaml
jjb/verify/voltha-go.yaml
jjb/verify/voltha-onos.yaml
jjb/verify/voltha-openolt-adapter.yaml
jjb/verify/voltha-openolt-adapter-go.yaml
jjb/verify/voltha-system-tests.yaml
jjb/voltha-e2e.yaml
jjb/voltha-scale.yaml
jjb/voltha-test/voltha-certification.yaml
jjb/voltha-test/voltha.yaml
-----------------------------------------
  o Add job definitions for v2.12
  o Del job definitions for v2.8

Revisit version strings post publishing:
  o [VOL-5082] revisit the deploy base tag versions
  o [VOL-5083] jjb/voltha-scale.yaml

Change-Id: I3bbe01bbbcb068fc63ca1fd6d07d7da3d25d007c
diff --git a/jjb/pipeline/voltha/makefile b/jjb/pipeline/voltha/makefile
index a3cb9b0..6c948c3 100644
--- a/jjb/pipeline/voltha/makefile
+++ b/jjb/pipeline/voltha/makefile
@@ -1,6 +1,7 @@
 # -*- makefile -*-
 
 version += master
+version += voltha-2.12
 version += voltha-2.11
 version += voltha-2.8
 version += playground