colibri-imx8x: construct fdtfile dynamically

The following expression is used to construct the device tree name:
fdtfile=${soc}-colibri-${fdt_board}.dtb

- soc is set dynamically (either imx8qxp or imx8dx)
- fdt_board can be modified by the user (eval-v3, aster, iris/iris-v2)

Signed-off-by: Andrejs Cainikovs <andrejs.cainikovs@toradex.com>
3 files changed