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/snapper9260.h b/include/configs/snapper9260.h
index 218ca54..c683fab 100644
--- a/include/configs/snapper9260.h
+++ b/include/configs/snapper9260.h
@@ -106,11 +106,11 @@
 #define CONFIG_SYS_PROMPT		"Snapper> "
 
 /* I2C - Bit-bashed */
-#define CONFIG_SOFT_I2C
-#define CONFIG_SYS_I2C_SPEED		100000
-#define CONFIG_SYS_I2C_SLAVE		0x7F
+#define CONFIG_SYS_I2C
+#define CONFIG_SYS_I2C_SOFT		/* I2C bit-banged */
+#define CONFIG_SYS_I2C_SOFT_SPEED	100000
+#define CONFIG_SYS_I2C_SOFT_SLAVE	0x7F
 #define CONFIG_SOFT_I2C_READ_REPEATED_START
-#define CONFIG_I2C_MULTI_BUS
 #define I2C_INIT do {							\
 		at91_set_gpio_output(AT91_PIN_PA23, 1);			\
 		at91_set_gpio_output(AT91_PIN_PA24, 1);			\