ASoC: amd: acp: Refactor acp platform device creation

Refactor acp platform device creation logic and remove unused
acp resource (acp_res) structure.

Signed-off-by: Venkata Prasad Potturu <venkataprasad.potturu@amd.com>
Link: https://patch.msgid.link/20250310183201.11979-5-venkataprasad.potturu@amd.com


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