ASoC: SOF: amd: remove unused variable from sof_amd_acp_desc structure

Remove unused structure member 'rev' from sof_amd_acp_desc structure.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://patch.msgid.link/20240821064650.2850310-1-Vijendar.Mukunda@amd.com


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