Fix problem with get/setdcr commands introduced by cfg patches

Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/cpu/ppc4xx/dcr.S b/cpu/ppc4xx/dcr.S
index 7102364..554db1b 100644
--- a/cpu/ppc4xx/dcr.S
+++ b/cpu/ppc4xx/dcr.S
@@ -22,7 +22,7 @@
  */
 #include <config.h>
 
-#if defined(CONFIG_4xx) && defined(CFG_CMD_SETGETDCR)
+#if defined(CONFIG_4xx) && ((CONFIG_COMMANDS & CFG_CMD_SETGETDCR) || defined(CONFIG_CMD_SETGETDCR))
 
 #include <ppc4xx.h>