tg3: Reintroduce 5717_PLUS

This patch reintroduces the TG3_FLG3_5717_PLUS to identify 5717 and
later devices.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 6f34db5..b8e6acc 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -2917,6 +2917,7 @@
 #define TG3_FLG3_L1PLLPD_EN		0x00800000
 #define TG3_FLG3_57765_PLUS		0x01000000
 #define TG3_FLG3_APE_HAS_NCSI		0x02000000
+#define TG3_FLG3_5717_PLUS		0x04000000
 
 	struct timer_list		timer;
 	u16				timer_counter;