i2c, ppc4xx_i2c: switch to new multibus/multiadapter support

Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc>
Cc: Heiko Schocher <hs@denx.de>
Cc: Stefan Roese <sr@denx.de>
Tested-by: Stefan Roese <sr@denx.de>
diff --git a/include/configs/gdppc440etx.h b/include/configs/gdppc440etx.h
index 7b8bac4..db1fd28 100644
--- a/include/configs/gdppc440etx.h
+++ b/include/configs/gdppc440etx.h
@@ -145,7 +145,7 @@
 /*
  * I2C
  */
-#define CONFIG_SYS_I2C_SPEED		400000	/* I2C speed+slave address*/
+#define CONFIG_SYS_I2C_PPC4XX_SPEED_0		400000
 
 /*
  * Default environment variables