rename CFG_ macros to CONFIG_SYS

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/mpc5xx.h b/include/mpc5xx.h
index 414651f..de6d215 100644
--- a/include/mpc5xx.h
+++ b/include/mpc5xx.h
@@ -42,7 +42,7 @@
  * ISB bit in IMMR to set internal memory map
  */
 
-#define CFG_ISB			((CFG_IMMR / 0x00400000) << 1)
+#define CONFIG_SYS_ISB			((CONFIG_SYS_IMMR / 0x00400000) << 1)
 
 /*-----------------------------------------------------------------------
  * SYPCR - System Protection Control Register