i2c: update config using mxc driver to new subsystem

Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr>
diff --git a/include/configs/m53evk.h b/include/configs/m53evk.h
index 024d3a5..d7ca66b 100644
--- a/include/configs/m53evk.h
+++ b/include/configs/m53evk.h
@@ -161,10 +161,9 @@
  * I2C
  */
 #ifdef CONFIG_CMD_I2C
-#define CONFIG_HARD_I2C
-#define CONFIG_I2C_MXC
-#define CONFIG_SYS_I2C_BASE		I2C2_BASE_ADDR
-#define CONFIG_SYS_I2C_SPEED		100000
+#define CONFIG_SYS_I2C
+#define CONFIG_SYS_I2C_MXC
+#define CONFIG_SYS_SPD_BUS_NUM		1 /* I2C2 */
 #endif
 
 /*