igb: Add stats output for OS2BMC feature on i350 devices

This patch adds statistics output for OS2BMC feature which is configured
by eeprom on capable devices.

Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/igb/e1000_defines.h b/drivers/net/igb/e1000_defines.h
index ff46c91..92e11da 100644
--- a/drivers/net/igb/e1000_defines.h
+++ b/drivers/net/igb/e1000_defines.h
@@ -110,6 +110,7 @@
 /* Management Control */
 #define E1000_MANC_SMBUS_EN      0x00000001 /* SMBus Enabled - RO */
 #define E1000_MANC_ASF_EN        0x00000002 /* ASF Enabled - RO */
+#define E1000_MANC_EN_BMC2OS     0x10000000 /* OSBMC is Enabled or not */
 /* Enable Neighbor Discovery Filtering */
 #define E1000_MANC_RCV_TCO_EN    0x00020000 /* Receive TCO Packets Enabled */
 #define E1000_MANC_BLK_PHY_RST_ON_IDE   0x00040000 /* Block phy resets */