arm: Move firmware function

Firmware loading/setup function are in fdt file while it is not very
related to this.

Move them to the file that does the main init/setup for memory.

Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2 files changed