The deprecated pcf8574 driver is going to be removed. Make sure the
replacement driver inherits all i2c_device_ids for a smooth transition.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>