ASoC: SOF: set disable_function_topology if override_tplg_filename is set

ASoC: SOF: set disable_function_topology if override_tplg_filename is set

User will expect the specified topology is used when
override_tplg_filename is set. However, the using function topologies
feature may use the function topologies instead of the specified
topology.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://patch.msgid.link/20250506113311.45487-3-yung-chuan.liao@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>