Blackfin EMAC driver: add a select for the PHYLIB of this driver

Since we are adding requirement for the PHYLIB for this driver, there should be a select for that

Cc: Robin Getz <robin.getz@analog.com>
Signed-off-by: NBryan Wu <bryan.wu@analog.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

drivers/net/Kconfig

@@ -838,6 +838,8 @@ config BFIN_MAC
 	tristate "Blackfin 536/537 on-chip mac support"
 	depends on NET_ETHERNET && (BF537 || BF536) && (!BF537_PORT_H)
 	select CRC32
+	select MII
+	select PHYLIB
 	select BFIN_MAC_USE_L1 if DMA_UNCACHED_NONE
 	help
 	  This is the driver for blackfin on-chip mac device. Say Y if you want it