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/nhk8815.h b/include/configs/nhk8815.h
index d438efd..09073e9 100644
--- a/include/configs/nhk8815.h
+++ b/include/configs/nhk8815.h
@@ -109,8 +109,11 @@
 #ifndef __ASSEMBLY__
 #include <asm/arch/gpio.h>
 #define CONFIG_CMD_I2C
-#define CONFIG_SOFT_I2C
-#define CONFIG_SYS_I2C_SPEED	400000
+#define CONFIG_SYS_I2C
+#define	CONFIG_SYS_I2C_SOFT	1	/* I2C bit-banged	*/
+#define I2C_SOFT_DEFS
+#define CONFIG_SYS_I2C_SOFT_SPEED	400000
+#define CONFIG_SYS_I2C_SOFT_SLAVE	0x7F
 #define __SDA			63
 #define __SCL			62
 #define I2C_SDA(x)		nmk_gpio_set(__SDA, x)