colibri_imx7: fix boot commands

Fix mixed up boot commands between raw NAND and eMMC variant. Also
make sure that the boot_file is defined for the eMMC boot command.

Fixes: a62c60610f51 ("colibri_imx7_emmc: add Colibri iMX7D 1GB (eMMC) module support")
Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
1 file changed