Parametrize socket_mem for dpdk vrouter

Change-Id: Ic91e036120fd5b8f0611603bc01154ff1eb6648d
diff --git a/tests/pillar/vrouter_dpdk.sls b/tests/pillar/vrouter_dpdk.sls
index 35f57f3..8a6c17f 100644
--- a/tests/pillar/vrouter_dpdk.sls
+++ b/tests/pillar/vrouter_dpdk.sls
@@ -16,7 +16,8 @@
     enabled: True
     dpdk:
       enabled: True
-      taskset: 0x0000003C00003C
+      taskset: "0x0000003C00003C"
+      socket_mem: "1024,1024"
     discovery:
       host: 127.0.0.1
     bind: