bnx2x: Saving PHY FW version

Some PHYs (like the BCM8726) FW version cannot be read after activating the
PHY, so we need to save this information

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bnx2x_hsi.h b/drivers/net/bnx2x_hsi.h
index 7b9acb3..7a62bfd 100644
--- a/drivers/net/bnx2x_hsi.h
+++ b/drivers/net/bnx2x_hsi.h
@@ -634,6 +634,8 @@
 
 	u32 stat_nig_timer;
 
+	/* MCP firmware does not use this field */
+	u32 ext_phy_fw_version;
 
 };