i2c, omap24xx: convert driver to new mutlibus/mutliadapter framework

- add omap24xx driver to new multibus/multiadpater support
- adapted all config files, which uses this driver

Tested on the am335x based siemens boards rut, dxr2 and pxm2
posted here:
http://patchwork.ozlabs.org/patch/263211/

Signed-off-by: Heiko Schocher <hs@denx.de>
Tested-by: Tom Rini <trini@ti.com>
Cc: Lars Poeschel <poeschel@lemonage.de>
Cc: Steve Sakoman <sakoman@gmail.com>
Cc: Thomas Weber <weber@corscience.de>
Cc: Tom Rix <Tom.Rix@windriver.com>
Cc: Grazvydas Ignotas <notasas@gmail.com>
Cc: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Cc: Luca Ceresoli <luca.ceresoli@comelit.it>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Ilya Yanok <yanok@emcraft.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Nishanth Menon <nm@ti.com>
Cc: Pali Rohár <pali.rohar@gmail.com>
Cc: Peter Barada <peter.barada@logicpd.com>
Cc: Nagendra T S  <nagendra@mistralsolutions.com>
Cc: Michael Jones <michael.jones@matrix-vision.de>
Cc: Raphael Assenat <raph@8d.com>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Stefano Babic <sbabic@denx.de>
diff --git a/include/configs/pcm051.h b/include/configs/pcm051.h
index 4970b13..6f41ee7 100644
--- a/include/configs/pcm051.h
+++ b/include/configs/pcm051.h
@@ -172,11 +172,10 @@
 /* I2C Configuration */
 #define CONFIG_I2C
 #define CONFIG_CMD_I2C
-#define CONFIG_HARD_I2C
-#define CONFIG_SYS_I2C_SPEED		100000
-#define CONFIG_SYS_I2C_SLAVE		1
-#define CONFIG_I2C_MULTI_BUS
-#define CONFIG_DRIVER_OMAP24XX_I2C
+#define CONFIG_SYS_I2C
+#define CONFIG_SYS_OMAP24_I2C_SPEED	100000
+#define CONFIG_SYS_OMAP24_I2C_SLAVE	1
+#define CONFIG_SYS_I2C_OMAP24XX
 #define CONFIG_CMD_EEPROM
 #define CONFIG_ENV_EEPROM_IS_ON_I2C
 #define CONFIG_SYS_I2C_EEPROM_ADDR	0x50	/* Main EEPROM */