Fix liburcu4 version for Contrail DPDK computes

Change-Id: Ifb7c163b230dc95f52740cd21fc9602377a5edf2
diff --git a/opencontrail/compute/dpdk.yml b/opencontrail/compute/dpdk.yml
index b0d8e0c..049fae0 100644
--- a/opencontrail/compute/dpdk.yml
+++ b/opencontrail/compute/dpdk.yml
@@ -17,7 +17,7 @@
     system:
       package:
         liburcu4:
-          version: 0.9.1-3+tcp1
+          version: 0.9.1-3
     network:
       interface:
         vhost0: