ASoC: SOF: intel: bdw: Constify snd_sof_dsp_ops

'struct snd_sof_dsp_ops' is not modified by core code, so it can be made
const for increased code safety.

Tested-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20240426-n-const-ops-var-v2-11-e553fe67ae82@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: krzk

sound/soc/sof/intel/bdw.c

@@ -567,7 +567,7 @@ static struct snd_soc_dai_driver bdw_dai[] = {
 };
 
 /* broadwell ops */
-static struct snd_sof_dsp_ops sof_bdw_ops = {
+static const struct snd_sof_dsp_ops sof_bdw_ops = {
 	/*Device init */
 	.probe          = bdw_probe,