ColdFire: Add CONFIG_MII_INIT for M5272C3

Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>

include/configs/M5272C3.h

@@ -91,6 +91,7 @@
 #ifdef CONFIG_MCFFEC
 #	define CONFIG_NET_MULTI		1
 #	define CONFIG_MII		1
+#	define CONFIG_MII_INIT		1
 #	define CFG_DISCOVER_PHY
 #	define CFG_RX_ETH_BUFFER	8
 #	define CFG_FAULT_ECHO_LINK_DOWN