igb: Add Energy Efficient Ethernet (EEE) for i350 devices.

This patch adds the EEE feature for i350 devices, enabled by default.

Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/igb/e1000_82575.h b/drivers/net/igb/e1000_82575.h
index 1d01af2..dd6df34 100644
--- a/drivers/net/igb/e1000_82575.h
+++ b/drivers/net/igb/e1000_82575.h
@@ -251,5 +251,6 @@
 void igb_vmdq_set_loopback_pf(struct e1000_hw *, bool);
 void igb_vmdq_set_replication_pf(struct e1000_hw *, bool);
 u16 igb_rxpbs_adjust_82580(u32 data);
+s32 igb_set_eee_i350(struct e1000_hw *);
 
 #endif