Convert CS8900 Ethernet driver to CONFIG_NET_MULTI API

All in-tree boards that use this controller have CONFIG_NET_MULTI added
Also:
  - changed CONFIG_DRIVER_CS8900 to CONFIG_CS8900
  - changed CS8900_BASE to CONFIG_CS8900_BASE
  - changed CS8900_BUS?? to CONFIG_CS8900_BUS??
  - cleaned up line lengths
  - modified VCMA9 command function that accesses the device
  - removed MAC address initialization from lib_arm/board.c

Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
Tested-by: Wolfgang Denk <wd@denx.de>
Acked-by: Wolfgang Denk <wd@denx.de>
diff --git a/include/configs/DK1C20.h b/include/configs/DK1C20.h
index 45ff2f7..cdc488b 100644
--- a/include/configs/DK1C20.h
+++ b/include/configs/DK1C20.h
@@ -232,15 +232,17 @@
 	/********************************************/
 	/* !!! CS8900 is __not__ tested on NIOS !!! */
 	/********************************************/
-#define	CONFIG_DRIVER_CS8900			/* Using CS8900		*/
-#define	CS8900_BASE		(CONFIG_SYS_NIOS_CPU_LAN0_BASE + CONFIG_SYS_NIOS_CPU_LAN0_OFFS)
+#define CONFIG_NET_MULTI
+#define	CONFIG_CS8900		/* Using CS8900		*/
+#define	CONFIG_CS8900_BASE	(CONFIG_SYS_NIOS_CPU_LAN0_BASE + \
+				CONFIG_SYS_NIOS_CPU_LAN0_OFFS)
 
 #if	(CONFIG_SYS_NIOS_CPU_LAN0_BUSW == 32)
-#undef	CS8900_BUS16
-#define	CS8900_BUS32		1
+#undef	CONFIG_CS8900_BUS16
+#define	CONFIG_CS8900_BUS32
 #else	/* no */
-#define	CS8900_BUS16		1
-#undef	CS8900_BUS32
+#define	CONFIG_CS8900_BUS16
+#undef	CONFIG_CS8900_BUS32
 #endif
 
 #else