rename CFG_ macros to CONFIG_SYS

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/post/lib_ppc/asm.S b/post/lib_ppc/asm.S
index 6220ed2..f6b329a 100644
--- a/post/lib_ppc/asm.S
+++ b/post/lib_ppc/asm.S
@@ -27,7 +27,7 @@
 #include <ppc_defs.h>
 #include <asm/cache.h>
 
-#if CONFIG_POST & CFG_POST_CPU
+#if CONFIG_POST & CONFIG_SYS_POST_CPU
 
 /* void cpu_post_exec_02 (ulong *code, ulong op1, ulong op2); */
 	.global	cpu_post_exec_02