i2c-ibm_iic.c fix

If anybody is following this patch it needs to be updated. It was 
recommended that the device_type be removed from the dts files. But the 
table matches the type, so I changed the table to only match the 
compatibility. I can give people a full blown patch if they want it. But 
basically the table should look like follows:

static const struct of_device_id ibm_iic_match[] =
{
	{ .compatible = "ibm,iic-405ex", },
	{ .compatible = "ibm,iic-405gp", },
	{ .compatible = "ibm,iic-440gp", },
	{ .compatible = "ibm,iic-440gpx", },
	{ .compatible = "ibm,iic-440grx", },
	{}
};



Cheers,
   Sean