rename CFG_ macros to CONFIG_SYS

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/cpu/mpc512x/iopin.c b/cpu/mpc512x/iopin.c
index 3d7042d..78f4fa1e 100644
--- a/cpu/mpc512x/iopin.c
+++ b/cpu/mpc512x/iopin.c
@@ -29,7 +29,7 @@
 {
 	short i, j, p;
 	u_long *reg;
-	immap_t *im = (immap_t *)CFG_IMMR;
+	immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
 
 	reg = (u_long *)&(im->io_ctrl.regs[0]);