rename CFG_ macros to CONFIG_SYS

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/board/cpu87/config.mk b/board/cpu87/config.mk
index 6384c78..6a694a4 100644
--- a/board/cpu87/config.mk
+++ b/board/cpu87/config.mk
@@ -25,7 +25,7 @@
 # CPU87 board
 #
 
-# This should be equal to the CFG_FLASH_BASE define in configs/cpu87.h
+# This should be equal to the CONFIG_SYS_FLASH_BASE define in configs/cpu87.h
 # for the "final" configuration, with U-Boot in flash, or the address
 # in RAM where U-Boot is loaded at for debugging.
 #