ASoC: amd: ps: Fix extraneous error messages

ASoC: amd: ps: Fix extraneous error messages

On Pink Sardine machines that don't have SdW controllers in use, the property
`mipi-sdw-manager-list` won't exist.  There is no point in showing an error
to a user when this situation is encountered.

Furthermore if the machine doesn't have a DMIC connected to the ACP, there
may be no platform devices created either.

Downgrade the associated message to debug.

Fixes: d1351c30ac8a6 ("ASoC: amd: ps: create platform devices based on acp config")
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20230708025208.54272-1-mario.limonciello@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>