[TG3]: Add missing NVRAM strapping.

This patch adds a missing NVRAM strapping for 5755 devices.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
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 e1b9381..d84e75e 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -1467,6 +1467,7 @@
 #define  FLASH_5755VENDOR_ATMEL_FLASH_2	 0x03400002
 #define  FLASH_5755VENDOR_ATMEL_FLASH_3	 0x03400000
 #define  FLASH_5755VENDOR_ATMEL_FLASH_4	 0x00000003
+#define  FLASH_5755VENDOR_ATMEL_FLASH_5	 0x02000003
 #define  FLASH_5755VENDOR_ATMEL_EEPROM_64KHZ	 0x03c00003
 #define  FLASH_5755VENDOR_ATMEL_EEPROM_376KHZ	 0x03c00002
 #define  FLASH_5787VENDOR_ATMEL_EEPROM_64KHZ	 0x03000003