tg3: Add TG3_FLG3_USE_PHYLIB

This patch introduces the TG3_FLG3_USE_PHYLIB flag and applies it to
some select places.  This work makes later patches a little easier to
read.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 5643be5..a3598ed 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -2480,6 +2480,7 @@
 #define TG3_FLG3_ENABLE_APE		0x00000002
 #define TG3_FLG3_5761_5784_AX_FIXES	0x00000004
 #define TG3_FLG3_5701_DMA_BUG		0x00000008
+#define TG3_FLG3_USE_PHYLIB		0x00000010
 
 	struct timer_list		timer;
 	u16				timer_counter;