[AETHER-255] Fix for tost-onos build

Introduces two jobs that build tost image using master and onos-2.2 branches

Change-Id: Ic1f8c290d347192fbf48cb84d9e4b9cda8a65fde
diff --git a/jjb/defaults.yaml b/jjb/defaults.yaml
index 02ec1fc..16471ab 100644
--- a/jjb/defaults.yaml
+++ b/jjb/defaults.yaml
@@ -27,6 +27,8 @@
     # see other build node types under "Cloud > Amazon EC2" at
     #  https://jenkins.onosproject.org/configure
     build-node: ubuntu16.04-basebuild-1c-1g
+
+    # Powerful node, this type of node should be used for bazel builds.
     bigger-build-node: ubuntu16.04-basebuild-8c-15g
 
     # default gerrit server definition
@@ -55,6 +57,10 @@
     # strictness of version checks - if set to 1, then only allow SemVer versioning
     semver-strict: 0
 
+    # Make test environment variables
+    # List of env. variables to be used when testing a patchest.
+    make-test-vars: ''
+
     # Make test targets
     # List of targets to run when testing a patchset, run with make
     # defaults to just 'test', multiple targets should be space separated