Fix CFG_CMD_SETGETDCR handling in "common/cmd_dcr.c"

[Patch by Cedric Vincent, 6 Jul 2005]
diff --git a/common/cmd_dcr.c b/common/cmd_dcr.c
index a91db66..3e4e08f 100644
--- a/common/cmd_dcr.c
+++ b/common/cmd_dcr.c
@@ -29,7 +29,7 @@
 #include <config.h>
 #include <command.h>
 
-#if defined(CONFIG_4xx) && defined(CFG_CMD_SETGETDCR)
+#if defined(CONFIG_4xx) && (CONFIG_COMMANDS & CFG_CMD_SETGETDCR)
 
 /* ======================================================================
  * Interpreter command to retrieve an IBM PPC 4xx Device Control Register