Add CONFIG_MII_INIT support to related boards

Replace CONFIG_8xx and CONFIG_MCF532x to CONFIG_MII_INIT in
cmd_init.c. Add CONFIG_MII_INIT to board configuration files
that use mii_init() in cmd_init.c.

Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
Acked-by: Ben Warren <biggerbadderben@gmail.com>
diff --git a/include/configs/spc1920.h b/include/configs/spc1920.h
index 6f2425f..f46c464 100644
--- a/include/configs/spc1920.h
+++ b/include/configs/spc1920.h
@@ -31,6 +31,7 @@
 #undef	CONFIG_8xx_CONS_NONE
 
 #define CONFIG_MII
+#define CONFIG_MII_INIT		1
 #undef CONFIG_ETHER_ON_FEC1
 #define CONFIG_ETHER_ON_FEC2
 #define FEC_ENET