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/board/mpl/pip405/pip405.c b/board/mpl/pip405/pip405.c
index b203037..655e129 100644
--- a/board/mpl/pip405/pip405.c
+++ b/board/mpl/pip405/pip405.c
@@ -209,7 +209,7 @@
 #endif
 
 	/* Read Serial Presence Detect Information */
-	i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+	i2c_set_bus_num(0);
 	for (i = 0; i < 128; i++)
 		datain[i] = 127;
 	i2c_read(SPD_EEPROM_ADDRESS,0,1,datain,128);