rename CFG_ macros to CONFIG_SYS

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/cpu/mpc85xx/ddr-gen2.c b/cpu/mpc85xx/ddr-gen2.c
index 130090c..655f99c 100644
--- a/cpu/mpc85xx/ddr-gen2.c
+++ b/cpu/mpc85xx/ddr-gen2.c
@@ -18,7 +18,7 @@
 			     unsigned int ctrl_num)
 {
 	unsigned int i;
-	volatile ccsr_ddr_t *ddr = (void *)CFG_MPC85xx_DDR_ADDR;
+	volatile ccsr_ddr_t *ddr = (void *)CONFIG_SYS_MPC85xx_DDR_ADDR;
 
 	if (ctrl_num) {
 		printf("%s unexpected ctrl_num = %u\n", __FUNCTION__, ctrl_num);