Convert SMC911X Ethernet driver to CONFIG_NET_MULTI API

All in-tree boards that use this controller have CONFIG_NET_MULTI added
Also:
 - changed CONFIG_DRIVER_SMC911X* to CONFIG_SMC911X*
 - cleaned up line lengths
 - modified all boards that override weak function in this driver
 - added

Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
Tested-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/board/bf548-ezkit/bf548-ezkit.c b/board/bf548-ezkit/bf548-ezkit.c
index 74f93ba..88a0cd4 100644
--- a/board/bf548-ezkit/bf548-ezkit.c
+++ b/board/bf548-ezkit/bf548-ezkit.c
@@ -7,6 +7,7 @@
  */
 
 #include <common.h>
+#include <netdev.h>
 #include <config.h>
 #include <command.h>
 #include <asm/blackfin.h>
@@ -77,3 +78,10 @@
 
 	return 0;
 }
+
+#ifdef CONFIG_SMC911X
+int board_eth_init(bd_t *bis)
+{
+	return smc911x_initialize(0, CONFIG_SMC911X_BASE);
+}
+#endif