mvtwsi: convert to CONFIG_SYS_I2C framework

Note this has only been tested on Allwinner sunxi devices (support for which
gets introduced by a later patch).

The kirkwood changes have been compile tested using the wireless_space board
config, the orion5x changes have been compile tested using the edminiv2 board
config.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Heiko Schocher <hs@denx.de>
diff --git a/include/configs/edminiv2.h b/include/configs/edminiv2.h
index 8b9f66a..77717a8 100644
--- a/include/configs/edminiv2.h
+++ b/include/configs/edminiv2.h
@@ -187,7 +187,8 @@
  * I2C related stuff
  */
 #ifdef CONFIG_CMD_I2C
-#define CONFIG_I2C_MVTWSI
+#define CONFIG_SYS_I2C
+#define CONFIG_SYS_I2C_MVTWSI
 #define CONFIG_I2C_MVTWSI_BASE		ORION5X_TWSI_BASE
 #define CONFIG_SYS_I2C_SLAVE		0x0
 #define CONFIG_SYS_I2C_SPEED		100000