i2c: update config using mxc driver to new subsystem

Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr>
diff --git a/include/configs/mx53loco.h b/include/configs/mx53loco.h
index bd2fa43..5f343b1 100644
--- a/include/configs/mx53loco.h
+++ b/include/configs/mx53loco.h
@@ -71,10 +71,9 @@
 #define CONFIG_MXC_USB_FLAGS	0
 
 /* I2C Configs */
-#define CONFIG_HARD_I2C
-#define CONFIG_I2C_MXC
-#define CONFIG_SYS_I2C_BASE		I2C1_BASE_ADDR
-#define CONFIG_SYS_I2C_SPEED		100000
+#define CONFIG_SYS_I2C
+#define CONFIG_SYS_I2C_MXC
+#define CONFIG_SYS_SPD_BUS_NUM		0 /* I2C1 */
 
 /* PMIC Controller */
 #define CONFIG_POWER