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/ibf-dsp561.h b/include/configs/ibf-dsp561.h
index 294af73..5291755 100644
--- a/include/configs/ibf-dsp561.h
+++ b/include/configs/ibf-dsp561.h
@@ -105,11 +105,11 @@
 /*
  * I2C Settings
  */
-#define CONFIG_SOFT_I2C		1
+#define CONFIG_SYS_I2C
+#define CONFIG_SYS_I2C_SOFT		/* I2C bit-banged */
 #define CONFIG_SOFT_I2C_GPIO_SCL GPIO_PF0
 #define CONFIG_SOFT_I2C_GPIO_SDA GPIO_PF1
 
-
 /*
  * Misc Settings
  */