rename CFG_ macros to CONFIG_SYS

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/drivers/rtc/m41t62.c b/drivers/rtc/m41t62.c
index 9b7c84a..cfe84f9 100644
--- a/drivers/rtc/m41t62.c
+++ b/drivers/rtc/m41t62.c
@@ -68,7 +68,7 @@
 {
 	u8 buf[M41T62_DATETIME_REG_SIZE];
 
-	i2c_read(CFG_I2C_RTC_ADDR, 0, 1, buf, M41T62_DATETIME_REG_SIZE);
+	i2c_read(CONFIG_SYS_I2C_RTC_ADDR, 0, 1, buf, M41T62_DATETIME_REG_SIZE);
 
 	debug("%s: raw read data - sec=%02x, min=%02x, hr=%02x, "
 	      "mday=%02x, mon=%02x, year=%02x, wday=%02x, y2k=%02x\n",
@@ -104,7 +104,7 @@
 	      tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_wday,
 	      tm->tm_hour, tm->tm_min, tm->tm_sec);
 
-	i2c_read(CFG_I2C_RTC_ADDR, 0, 1, buf, M41T62_DATETIME_REG_SIZE);
+	i2c_read(CONFIG_SYS_I2C_RTC_ADDR, 0, 1, buf, M41T62_DATETIME_REG_SIZE);
 
 	/* Merge time-data and register flags into buf[0..7] */
 	buf[M41T62_REG_SSEC] = 0;
@@ -123,7 +123,7 @@
 	/* assume 20YY not 19YY */
 	buf[M41T62_REG_YEAR] = BIN2BCD(tm->tm_year % 100);
 
-	if (i2c_write(CFG_I2C_RTC_ADDR, 0, 1, buf, M41T62_DATETIME_REG_SIZE)) {
+	if (i2c_write(CONFIG_SYS_I2C_RTC_ADDR, 0, 1, buf, M41T62_DATETIME_REG_SIZE)) {
 		printf("I2C write failed in %s()\n", __func__);
 		return -1;
 	}