Avoiding reinstalling the openolt agent on soak pod

Temporary disable of the 2.6 DEFAULT job on XGS-PON in Berlin

Change-Id: Iac4c0c64f4ae186085ac95104a3ab5d4fc9a99c6
diff --git a/jjb/cord-test/voltha.yaml b/jjb/cord-test/voltha.yaml
index e1e2b17..157b607 100644
--- a/jjb/cord-test/voltha.yaml
+++ b/jjb/cord-test/voltha.yaml
@@ -413,6 +413,7 @@
           test-repo: 'voltha-system-tests'
           name-extension: '_DT'
           work-flow: 'DT'
+          reinstall-olt: false
           Jenkinsfile: 'Jenkinsfile-voltha-build'
           configurePod: true
 
@@ -549,6 +550,7 @@
           test-repo: 'voltha-system-tests'
           Jenkinsfile: 'Jenkinsfile-voltha-build'
           configurePod: true
+          disable-job: true
           profile: 'Default'
           time: '17'