include/configs: Use new CONFIG_CMD_* in various M* named board config files.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
diff --git a/include/configs/MBX860T.h b/include/configs/MBX860T.h
index 0ca0970..69d195d 100644
--- a/include/configs/MBX860T.h
+++ b/include/configs/MBX860T.h
@@ -151,7 +151,7 @@
  * Cache Configuration
  */
 #define CFG_CACHELINE_SIZE	16	/* For all MPC8xx CPUs			*/
-#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#if defined(CONFIG_CMD_KGDB)
 #define CFG_CACHELINE_SHIFT	4	/* log base 2 of the above value	*/
 #endif