ASoC: SOF: sof-priv.h: optimize snd_sof_mailbox

Reverse the two members to remove a hole.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://patch.msgid.link/20240802124609.188954-3-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/sof-priv.h

@@ -412,8 +412,8 @@ struct snd_sof_debugfs_map {
 
 /* mailbox descriptor, used for host <-> DSP IPC */
 struct snd_sof_mailbox {
-	u32 offset;
 	size_t size;
+	u32 offset;
 };
 
 /* IPC message descriptor for host <-> DSP IO */