i2c: update config using mxc driver to new subsystem

Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr>
diff --git a/include/configs/vf610twr.h b/include/configs/vf610twr.h
index 5a7a066..34861f6 100644
--- a/include/configs/vf610twr.h
+++ b/include/configs/vf610twr.h
@@ -70,10 +70,9 @@
 
 /* I2C Configs */
 #define CONFIG_CMD_I2C
-#define CONFIG_HARD_I2C
-#define CONFIG_I2C_MXC
-#define CONFIG_SYS_I2C_BASE		I2C0_BASE_ADDR
-#define CONFIG_SYS_I2C_SPEED		100000
+#define CONFIG_SYS_I2C
+#define CONFIG_SYS_I2C_MXC
+#define CONFIG_SYS_SPD_BUS_NUM		0
 
 #define CONFIG_BOOTDELAY		3