configs/olimex_imx233_olinuxino: readme: Adjust the generated file names

After the conversion to the common genimage scripts the generated file list
is a bit different, so adjust it accordingly.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
1 file changed