Fix build errors and warnings / code cleanup.

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/include/configs/LANTEC.h b/include/configs/LANTEC.h
index 2191c7b..46edd08 100644
--- a/include/configs/LANTEC.h
+++ b/include/configs/LANTEC.h
@@ -106,6 +106,7 @@
 #undef CONFIG_CMD_IRQ
 #undef CONFIG_CMD_JFFS2
 #undef CONFIG_CMD_KGDB
+#undef CONFIG_CMD_MFSL
 #undef CONFIG_CMD_MII
 #undef CONFIG_CMD_MMC
 #undef CONFIG_CMD_NAND