ASoC: SOF: ops: don't return void value

Sparse throws the following warning:

sound/soc/sof/ops.h:247:17: error: returning void-valued expression

Remove the useless returns.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Paul Olaru <paul.olaru@oss.nxp.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20210521092804.3721324-7-kai.vehmanen@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/ops.h

@@ -244,13 +244,13 @@ snd_sof_dsp_set_power_state(struct snd_sof_dev *sdev,
 static inline void snd_sof_dsp_dbg_dump(struct snd_sof_dev *sdev, u32 flags)
 {
 	if (sof_ops(sdev)->dbg_dump)
-		return sof_ops(sdev)->dbg_dump(sdev, flags);
+		sof_ops(sdev)->dbg_dump(sdev, flags);
 }
 
 static inline void snd_sof_ipc_dump(struct snd_sof_dev *sdev)
 {
 	if (sof_ops(sdev)->ipc_dump)
-		return sof_ops(sdev)->ipc_dump(sdev);
+		sof_ops(sdev)->ipc_dump(sdev);
 }
 
 /* register IO */