rename CFG_ macros to CONFIG_SYS

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/asm-mips/global_data.h b/include/asm-mips/global_data.h
index 7cf2a00..b2c4891 100644
--- a/include/asm-mips/global_data.h
+++ b/include/asm-mips/global_data.h
@@ -33,7 +33,7 @@
  * global variables during system initialization (until we have set
  * up the memory controller so that we can use RAM).
  *
- * Keep it *SMALL* and remember to set CFG_GBL_DATA_SIZE > sizeof(gd_t)
+ * Keep it *SMALL* and remember to set CONFIG_SYS_GBL_DATA_SIZE > sizeof(gd_t)
  */
 
 typedef	struct	global_data {