pico-imx7d: Adjust the dtb name

Since kernel commit 41bbeadceb03 ("ARM: dts: imx7d-pico-pi: Separate
into cpu and baseboard dts") the dtb name has changed.

Fix it accordingly.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
1 file changed