Coldfire platforms are non-DT users of this driver, so
keep the .id_table support.

This reverts commit c610199c.

Fixes: c610199c (i2c: imx: Remove unused .id_table support")
Reported-by: Sascha Hauer <sha@pengutronix.de>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>