rename CFG_ macros to CONFIG_SYS

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/drivers/hwmon/ds1621.c b/drivers/hwmon/ds1621.c
index 523f8be..d15a082 100644
--- a/drivers/hwmon/ds1621.c
+++ b/drivers/hwmon/ds1621.c
@@ -125,7 +125,7 @@
     /*
      * Setup High Temp.
      */
-    val = ((CFG_DTT_MAX_TEMP * 2) << 7) & 0xff80;
+    val = ((CONFIG_SYS_DTT_MAX_TEMP * 2) << 7) & 0xff80;
     if (dtt_write(sensor, DTT_TEMP_HIGH, val) != 0)
 	return 1;
     udelay(50000);				/* Max 50ms */
@@ -133,7 +133,7 @@
     /*
      * Setup Low Temp - hysteresis.
      */
-    val = (((CFG_DTT_MAX_TEMP - CFG_DTT_HYSTERESIS) * 2) << 7) & 0xff80;
+    val = (((CONFIG_SYS_DTT_MAX_TEMP - CONFIG_SYS_DTT_HYSTERESIS) * 2) << 7) & 0xff80;
     if (dtt_write(sensor, DTT_TEMP_LOW, val) != 0)
 	return 1;
     udelay(50000);				/* Max 50ms */