i2c, soft-i2c: switch to new multibus/multiadapter support

- added to soft_i2c driver new multibus/multiadpater support
- adapted all config files, which uses this driver

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
diff --git a/include/configs/A3000.h b/include/configs/A3000.h
index d506a55..340c685 100644
--- a/include/configs/A3000.h
+++ b/include/configs/A3000.h
@@ -86,8 +86,8 @@
  * PCI stuff
  *-----------------------------------------------------------------------
  */
-#define CONFIG_HARD_I2C		1		/* To enable I2C support	*/
-#undef	CONFIG_SOFT_I2C				/* I2C bit-banged		*/
+#define CONFIG_HARD_I2C		1		/* To enable I2C support */
+#undef	CONFIG_SYS_I2C_SOFT			/* I2C bit-banged */
 #define CONFIG_SYS_I2C_SPEED		400000		/* I2C speed and slave address	*/
 #define CONFIG_SYS_I2C_SLAVE		0x7F