ASoC: SOF: ipc4-topology: Use macro to set the EXT_PARAM_SIZE in widget setup

Use the SOF_IPC4_MOD_EXT_PARAM_SIZE() macro to set the param size in the
extension part of the IPC message for clarity.

No Functional change as the PARMA_SIZE offset is at 0.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://patch.msgid.link/20241213132110.27800-1-peter.ujfalusi@linux.intel.com


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