mpc83xx: Update 83xx to use fsl_i2c.c

Update the 83xx tree to use I2C support in drivers/fsl_i2c.c.  Delete
cpu/mpc83xx/i2c.c, include/asm-ppc/i2c.h, and all references to those files.
Added multiple I2C bus support to fsl_i2c.c.

Signed-off-by: Timur Tabi <timur@freescale.com>
diff --git a/include/configs/MPC8349EMDS.h b/include/configs/MPC8349EMDS.h
index 4a5b4bc..5bed2d0 100644
--- a/include/configs/MPC8349EMDS.h
+++ b/include/configs/MPC8349EMDS.h
@@ -335,6 +335,7 @@
 /* I2C */
 #define CONFIG_HARD_I2C			/* I2C with hardware support*/
 #undef CONFIG_SOFT_I2C			/* I2C bit-banged */
+#define CONFIG_FSL_I2C
 #define CONFIG_I2C_MULTI_BUS
 #define CONFIG_I2C_CMD_TREE
 #define CFG_I2C_SPEED		400000	/* I2C speed and slave address */