ASoC: amd: acp: modify config flag read logic

ASoC: amd: acp: modify config flag read logic

Modify acp config flag read logic from ACP v7.0 onwards.
Instead of reading from DMI table match entry, read the
config flag value from BIOS ACPI table.
This will remove updating DMI table when new platform support
is added.
Use FLAG_AMD_LEGACY_ONLY_DMIC flag as default one.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20231207045505.1519151-1-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>