[PATCH] i2c: i2c-ibm_iic add I2C_CLASS_HWMON

Add the ibm_iic driver to the HWMON class so it will scan the
bus for connected hardware monitor sensors.

Signed-off-by: Martin Hicks <mort@bork.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>