[TG3]: Use constant for PHY register 0x1e.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 80f59ac..45d477e 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -1660,6 +1660,7 @@
 
 #define MII_TG3_TEST1			0x1e
 #define MII_TG3_TEST1_TRIM_EN		0x0010
+#define MII_TG3_TEST1_CRC_EN		0x8000
 
 /* There are two ways to manage the TX descriptors on the tigon3.
  * Either the descriptors are in host DMA'able memory, or they