OpenContrail DPDK support

Enable DPDK vrouter agent installation and configuration

Change-Id: I846267ea66a7cf8827881cbdbdd5be328707bc6e
Epic: PROD-9023
diff --git a/README.rst b/README.rst
index fb8ebbe..574d476 100644
--- a/README.rst
+++ b/README.rst
@@ -688,6 +688,21 @@
         rpc_port: 9160
       ....
 
+DPDK vRouter
+-------------
+
+.. code-block:: yaml
+
+    opencontrail:
+      compute:
+        dpdk:
+          enabled: true
+          taskset: 0x0000003C00003C
+        interface:
+          mac_address: 90:e2:ba:7c:22:e1
+          pci: 0000:81:00.1
+      ...
+
 Usage
 =====