Add job for libvirt-exporter on Trusty and use DPDK1702 for contrail 4.0

Change-Id: I4806df5479e213973d8c13af98514bb8a3eb6ba9
diff --git a/jenkins/client/job/debian/packages/extra.yml b/jenkins/client/job/debian/packages/extra.yml
index ec40836..b344c63 100644
--- a/jenkins/client/job/debian/packages/extra.yml
+++ b/jenkins/client/job/debian/packages/extra.yml
@@ -101,6 +101,10 @@
               dist: trusty
               build: pipeline
               branch: debian/trusty
+            - package: libvirt-exporter
+              dist: trusty
+              build: libvirt-exporter
+              branch: master
             - package: librdkafka
               dist: xenial
               build: pipeline