ASoC: Intel: adl: remove sof_fw_filename setting in ADL snd_soc_acpi_mach

ADL will use sof-adl-s.ri if it is ADL-S platform. So let's use
the default_fw_filename in pdata->desc for the ADL FW filename.

Signed-off-by: Libin Yang <libin.yang@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20210125070500.807474-3-kai.vehmanen@linux.intel.com


Signed-off-by: Mark Brown <broonie@kernel.org>