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 <[e-mail]>
Reviewed-by: Bard Liao <[e-mail]>
Reviewed-by: Liam Girdwood <[e-mail]>
Reviewed-by: Ranjani Sridharan <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

sound/soc/sof/ipc4-topology.c

···
 		msg->primary |= SOF_IPC4_MOD_INSTANCE(swidget->instance_id);
 
 		msg->extension &= ~SOF_IPC4_MOD_EXT_PARAM_SIZE_MASK;
-		msg->extension |= ipc_size >> 2;
+		msg->extension |= SOF_IPC4_MOD_EXT_PARAM_SIZE(ipc_size >> 2);
 
 		msg->extension &= ~SOF_IPC4_MOD_EXT_PPL_ID_MASK;
 		msg->extension |= SOF_IPC4_MOD_EXT_PPL_ID(pipe_widget->instance_id);