soundwire: intel/cadence: set ip_offset at run-time

Select relevant ip-offset depending on hardware version. This offset
is used to access MCP_ or IP_MCP_ registers with a fixed offset.

For existing platforms, the offset is exactly zero. Starting with
LunarLake, the offset is 0x4000.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20230515071042.2038-6-yung-chuan.liao@linux.intel.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>