UPSTREAM: ASoC: soc-acpi: add get_function_tplg_files ops

We always use a single topology that contains all PCM devices belonging
to a machine configuration.
However, with SDCA, we want to be able to load function topologies based
on the supported device functions. This change is in preparation for
loading those function topologies.

Bug: 431945678
Test: verify the sound card list using the following command: aplay -l
(cherry picked from commit d1e70eed)

Change-Id: Iaf6f040772c8cc9433a46a2d6b1f3941191aca96
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://patch.msgid.link/20250414063239.85200-4-yung-chuan.liao@linux.intel.com


Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Uday M Bhat <uday.m.bhat@intel.com>
Signed-off-by: Mac Chiang <mac.chiang@intel.com>