[e1000] Strip the Ethernet CRC from received packets

Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/drivers/net/e1000/e1000_main.c

 
 	/* Enable Receives */
 	rctl |=  E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
-		 E1000_RCTL_MPE;
+		 E1000_RCTL_MPE | E1000_RCTL_SECRC;
 	E1000_WRITE_REG ( hw, E1000_RCTL, rctl );
 	E1000_WRITE_FLUSH ( hw );