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/drivers/net/Makefile b/drivers/net/Makefile
index 1c6e402..f6e9f67 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -30,7 +30,7 @@
 COBJS-$(CONFIG_DRIVER_AX88180) += ax88180.o
 COBJS-$(CONFIG_BCM570x) += bcm570x.o bcm570x_autoneg.o 5701rls.o
 COBJS-$(CONFIG_BFIN_MAC) += bfin_mac.o
-COBJS-$(CONFIG_DRIVER_CS8900) += cs8900.o
+COBJS-$(CONFIG_CS8900) += cs8900.o
 COBJS-$(CONFIG_TULIP) += dc2114x.o
 COBJS-$(CONFIG_DRIVER_DM9000) += dm9000x.o
 COBJS-$(CONFIG_DNET) += dnet.o