rename CFG_ macros to CONFIG_SYS

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/lib_microblaze/time.c b/lib_microblaze/time.c
index b5d8f19..cbb4341 100644
--- a/lib_microblaze/time.c
+++ b/lib_microblaze/time.c
@@ -26,7 +26,7 @@
 
 #include <common.h>
 
-#ifdef CFG_TIMER_0
+#ifdef CONFIG_SYS_TIMER_0
 void udelay (unsigned long usec)
 {
 	int i;