rename CFG_ macros to CONFIG_SYS

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/asm-avr32/global_data.h b/include/asm-avr32/global_data.h
index 75e75cc..97a6c61 100644
--- a/include/asm-avr32/global_data.h
+++ b/include/asm-avr32/global_data.h
@@ -29,7 +29,7 @@
  * 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 {