ALSA: sis7019: Simplify with DEFINE_SIMPLE_DEV_PM_OPS()

Use the new DEFINE_SIMPLE_DEV_PM_OPS() instead of SIMPLE_DEV_PM_OPS()
for code-simplification.  We need no longer CONFIG_PM_SLEEP ifdefs.

This ends up with the allocation of all 4 pages no matter with
CONFIG_PM, but the code simplification should justify the cost.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20240207155140.18238-28-tiwai@suse.deSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/sis7019.c

@@ -90,11 +90,7 @@ struct voice {
  * we're not doing power management, we still need to allocate a page
  * for the silence buffer.
  */
-#ifdef CONFIG_PM_SLEEP
 #define SIS_SUSPEND_PAGES	4
-#else
-#define SIS_SUSPEND_PAGES	1
-#endif
 
 struct sis7019 {
 	unsigned long ioport;
@@ -1152,7 +1148,6 @@ static int sis_chip_init(struct sis7019 *sis)
 	return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int sis_suspend(struct device *dev)
 {
 	struct snd_card *card = dev_get_drvdata(dev);
@@ -1231,11 +1226,7 @@ static int sis_resume(struct device *dev)
 	return -EIO;
 }
 
-static SIMPLE_DEV_PM_OPS(sis_pm, sis_suspend, sis_resume);
-#define SIS_PM_OPS	&sis_pm
-#else
-#define SIS_PM_OPS	NULL
-#endif /* CONFIG_PM_SLEEP */
+static DEFINE_SIMPLE_DEV_PM_OPS(sis_pm, sis_suspend, sis_resume);
 
 static int sis_alloc_suspend(struct sis7019 *sis)
 {
@@ -1397,7 +1388,7 @@ static struct pci_driver sis7019_driver = {
 	.id_table = snd_sis7019_ids,
 	.probe = snd_sis7019_probe,
 	.driver = {
-		.pm = SIS_PM_OPS,
+		.pm = &sis_pm,
 	},
 };