rte_flow. This patch is to support igb NIC with existing RSS configuration
using rte_flow API.
+* **Add AVF (Adaptive Virtual Function) net PMD.**
+
+ A new net PMD has been added, which supports IntelĀ® Ethernet Adaptive
+ Virtual Function (AVF) with features list below:
+
+ * Basic Rx/Tx burst
+ * SSE vectorized Rx/Tx burst
+ * Promiscuous mode
+ * MAC/VLAN offload
+ * Checksum offload
+ * TSO offload
+ * Jumbo frame and MTU setting
+ * RSS configuration
+ * stats
+ * Rx/Tx descriptor status
+ * Link status update/event
+
API Changes
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