ASoC: codecs: constify static sdw_slave_ops struct

The struct sdw_slave_ops is not modified and sdw_driver takes pointer to
const, so make it a const for code safety.

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

sound/soc/codecs/rt1316-sdw.c

···
  * slave_ops: callbacks for get_clock_stop_mode, clock_stop and
  * port_prep are not defined for now
  */
-static struct sdw_slave_ops rt1316_slave_ops = {
+static const struct sdw_slave_ops rt1316_slave_ops = {
 	.read_prop = rt1316_read_prop,
 	.update_status = rt1316_update_status,
 };

sound/soc/codecs/rt1318-sdw.c

···
  * slave_ops: callbacks for get_clock_stop_mode, clock_stop and
  * port_prep are not defined for now
  */
-static struct sdw_slave_ops rt1318_slave_ops = {
+static const struct sdw_slave_ops rt1318_slave_ops = {
 	.read_prop = rt1318_read_prop,
 	.update_status = rt1318_update_status,
 };

sound/soc/codecs/rt711-sdca-sdw.c

···
 	return ret;
 }
 
-static struct sdw_slave_ops rt711_sdca_slave_ops = {
+static const struct sdw_slave_ops rt711_sdca_slave_ops = {
 	.read_prop = rt711_sdca_read_prop,
 	.interrupt_callback = rt711_sdca_interrupt_callback,
 	.update_status = rt711_sdca_update_status,

sound/soc/codecs/rt715-sdca-sdw.c

···
 	return 0;
 }
 
-static struct sdw_slave_ops rt715_sdca_slave_ops = {
+static const struct sdw_slave_ops rt715_sdca_slave_ops = {
 	.read_prop = rt715_sdca_read_prop,
 	.update_status = rt715_sdca_update_status,
 };

sound/soc/codecs/wcd938x-sdw.c

···
 	return IRQ_HANDLED;
 }
 
-static struct sdw_slave_ops wcd9380_slave_ops = {
+static const struct sdw_slave_ops wcd9380_slave_ops = {
 	.update_status = wcd9380_update_status,
 	.interrupt_callback = wcd9380_interrupt_callback,
 	.bus_config = wcd9380_bus_config,

sound/soc/codecs/wsa881x.c

···
 	return 0;
 }
 
-static struct sdw_slave_ops wsa881x_slave_ops = {
+static const struct sdw_slave_ops wsa881x_slave_ops = {
 	.update_status = wsa881x_update_status,
 	.bus_config = wsa881x_bus_config,
 	.port_prep = wsa881x_port_prep,

sound/soc/codecs/wsa883x.c

···
 	return 0;
 }
 
-static struct sdw_slave_ops wsa883x_slave_ops = {
+static const struct sdw_slave_ops wsa883x_slave_ops = {
 	.update_status = wsa883x_update_status,
 	.port_prep = wsa883x_port_prep,
 };