bnx2: convert to set_phys_id

In this case, need to add element to device private to hold
original led state.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h
index 6802045..91e8356 100644
--- a/drivers/net/bnx2.h
+++ b/drivers/net/bnx2.h
@@ -6922,6 +6922,7 @@
 	u8			num_tx_rings;
 	u8			num_rx_rings;
 
+	u32 			leds_save;
 	u32			idle_chk_status_idx;
 
 #ifdef BCM_CNIC