rename CFG_ macros to CONFIG_SYS

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/board/pcippc2/i2c.c b/board/pcippc2/i2c.c
index 36b1d0f..ab52562 100644
--- a/board/pcippc2/i2c.c
+++ b/board/pcippc2/i2c.c
@@ -85,7 +85,7 @@
 {
   int			v;
 
-  asm volatile("mtdec %0" : : "r" (time * ((CFG_BUS_CLK / 4) / 1000000)));
+  asm volatile("mtdec %0" : : "r" (time * ((CONFIG_SYS_BUS_CLK / 4) / 1000000)));
 
   do
   {