Added volthaSystemTestsChange param to master physical-build pipeline

Change-Id: I7374531ca1604cb39f46370be5d7241aa7145b80
diff --git a/jjb/pipeline/voltha/master/physical-build.groovy b/jjb/pipeline/voltha/master/physical-build.groovy
index 25cd2a0..a9cdc8b 100644
--- a/jjb/pipeline/voltha/master/physical-build.groovy
+++ b/jjb/pipeline/voltha/master/physical-build.groovy
@@ -44,6 +44,7 @@
       steps {
         getVolthaCode([
           branch: "${branch}",
+          volthaSystemTestsChange: "${volthaSystemTestsChange}",
           volthaHelmChartsChange: "${volthaHelmChartsChange}",
         ])
       }