arm64: dts: imx8m: Always name the generated fitImage u-boot.itb

Maintain backward compatibility with pre-binman u-boot file naming,
the U-Boot fitImage used to be named u-boot.itb before, restore the
file name after binman conversion.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
4 files changed