platform: generic: move fdt_reset_init to final_init

Move the fdt_reset_init() invocation from generic_early_init() to
generic_final_init(). This allows to print error messages.

Ignore the return value of fdt_reset_init() as we should not stop booting
due to failure to initialize reset drivers.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Dong Du <Dd_nirvana@sjtu.edu.cn>
Reviewed-by: Anup Patel <anup.patel@wdc.com>